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Control+ControlCollection.xml
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<Type Name="Control+ControlCollection" FullName="System.Windows.Forms.Control+ControlCollection">
<TypeSignature Language="C#" Value="public class Control.ControlCollection : ICloneable, System.Collections.IList" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="ILAsm" Value=".class nested public auto ansi beforefieldinit Control/ControlCollection extends System.Object implements class System.Collections.ICollection, class System.Collections.IEnumerable, class System.Collections.IList, class System.ICloneable" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="DocId" Value="T:System.Windows.Forms.Control.ControlCollection" />
<TypeSignature Language="VB.NET" Value="Public Class Control.ControlCollection
Implements ICloneable, IList" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="F#" Value="type Control.ControlCollection = class
 interface IList
 interface ICollection
 interface IEnumerable
 interface ICloneable" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="C++ CLI" Value="public: ref class Control::ControlCollection : ICloneable, System::Collections::IList" FrameworkAlternate="netframework-1.1" />
<TypeSignature Language="C#" Value="public class Control.ControlCollection : System.Windows.Forms.Layout.ArrangedElementCollection, ICloneable, System.Collections.IList" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<TypeSignature Language="ILAsm" Value=".class nested public auto ansi beforefieldinit Control/ControlCollection extends System.Windows.Forms.Layout.ArrangedElementCollection implements class System.Collections.ICollection, class System.Collections.IEnumerable, class System.Collections.IList, class System.ICloneable" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<TypeSignature Language="VB.NET" Value="Public Class Control.ControlCollection
Inherits ArrangedElementCollection
Implements ICloneable, IList" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<TypeSignature Language="F#" Value="type Control.ControlCollection = class
 inherit ArrangedElementCollection
 interface IList
 interface ICollection
 interface IEnumerable
 interface ICloneable" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<TypeSignature Language="C++ CLI" Value="public: ref class Control::ControlCollection : System::Windows::Forms::Layout::ArrangedElementCollection, ICloneable, System::Collections::IList" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Base>
<BaseTypeName>System.Object</BaseTypeName>
<BaseTypeName FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0">System.Windows.Forms.Layout.ArrangedElementCollection</BaseTypeName>
</Base>
<Interfaces>
<Interface>
<InterfaceName>System.Collections.ICollection</InterfaceName>
</Interface>
<Interface>
<InterfaceName>System.Collections.IEnumerable</InterfaceName>
</Interface>
<Interface>
<InterfaceName>System.Collections.IList</InterfaceName>
</Interface>
<Interface>
<InterfaceName>System.ICloneable</InterfaceName>
</Interface>
</Interfaces>
<Attributes>
<Attribute FrameworkAlternate="netframework-1.1">
<AttributeName Language="C#">[System.ComponentModel.Design.Serialization.DesignerSerializer("System.Windows.Forms.Design.ControlCollectionCodeDomSerializer, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")]</AttributeName>
<AttributeName Language="F#">[<System.ComponentModel.Design.Serialization.DesignerSerializer("System.Windows.Forms.Design.ControlCollectionCodeDomSerializer, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a", "System.ComponentModel.Design.Serialization.CodeDomSerializer, System.Design, Version=1.0.5000.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a")>]</AttributeName>
</Attribute>
<Attribute>
<AttributeName Language="C#">[System.ComponentModel.ListBindable(false)]</AttributeName>
<AttributeName Language="F#">[<System.ComponentModel.ListBindable(false)>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1">
<AttributeName Language="C#">[System.Runtime.InteropServices.ComVisible(false)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.InteropServices.ComVisible(false)>]</AttributeName>
</Attribute>
<Attribute FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-8.0;windowsdesktop-9.0">
<AttributeName Language="C#">[System.Runtime.CompilerServices.Nullable(0)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.CompilerServices.Nullable(0)>]</AttributeName>
</Attribute>
</Attributes>
<Docs>
<summary>Represents a collection of <see cref="T:System.Windows.Forms.Control" /> objects.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Windows.Forms.Control.ControlCollection.Add%2A>, <xref:System.Windows.Forms.Control.ControlCollection.Remove%2A>, and <xref:System.Windows.Forms.Control.ControlCollection.RemoveAt%2A> methods enable you to add and remove individual controls from the collection. You can also use the <xref:System.Windows.Forms.Control.ControlCollection.AddRange%2A> or <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> methods to add or remove all the controls from the collection.
You can determine if a <xref:System.Windows.Forms.Control> is a member of the collection by passing the control into the <xref:System.Windows.Forms.Control.ControlCollection.Contains%2A> method. To get the index value of the location of a <xref:System.Windows.Forms.Control> in the collection, pass the control into the <xref:System.Windows.Forms.Control.ControlCollection.IndexOf%2A> method. The collection can be copied into an array by calling the <xref:System.Windows.Forms.Layout.ArrangedElementCollection.CopyTo%2A> method.
## Examples
The following code example removes a <xref:System.Windows.Forms.Control> from the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel> if it is a member of the collection. The example requires that you have created a <xref:System.Windows.Forms.Panel>, a <xref:System.Windows.Forms.Button>, and at least one <xref:System.Windows.Forms.RadioButton> control on a <xref:System.Windows.Forms.Form>. The <xref:System.Windows.Forms.RadioButton> controls are added to the <xref:System.Windows.Forms.Panel> control, and the <xref:System.Windows.Forms.Panel> control added to the <xref:System.Windows.Forms.Form>. When the button is clicked, the radio button named `radioButton2` is removed from the <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet4":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet4":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet4":::
]]></format>
</remarks>
<altmember cref="T:System.Windows.Forms.Control" />
<altmember cref="T:System.Collections.IList" />
</Docs>
<Members>
<Member MemberName=".ctor">
<MemberSignature Language="C#" Value="public ControlCollection (System.Windows.Forms.Control owner);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig specialname rtspecialname instance void .ctor(class System.Windows.Forms.Control owner) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.#ctor(System.Windows.Forms.Control)" />
<MemberSignature Language="VB.NET" Value="Public Sub New (owner As Control)" />
<MemberSignature Language="F#" Value="new System.Windows.Forms.Control.ControlCollection : System.Windows.Forms.Control -> System.Windows.Forms.Control.ControlCollection" Usage="new System.Windows.Forms.Control.ControlCollection owner" />
<MemberSignature Language="C++ CLI" Value="public:
 ControlCollection(System::Windows::Forms::Control ^ owner);" />
<MemberType>Constructor</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Parameters>
<Parameter Name="owner" Type="System.Windows.Forms.Control" />
</Parameters>
<Docs>
<param name="owner">A <see cref="T:System.Windows.Forms.Control" /> representing the control that owns the control collection.</param>
<summary>Initializes a new instance of the <see cref="T:System.Windows.Forms.Control.ControlCollection" /> class.</summary>
<remarks>To be added.</remarks>
<exception cref="T:System.ArgumentNullException">.NET 5 and later versions: The <paramref name="owner" /> argument is <see langword="null" />.</exception>
<altmember cref="P:System.Windows.Forms.Control.Controls" />
</Docs>
</Member>
<Member MemberName="Add">
<MemberSignature Language="C#" Value="public virtual void Add (System.Windows.Forms.Control value);" FrameworkAlternate="netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void Add(class System.Windows.Forms.Control value) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)" />
<MemberSignature Language="VB.NET" Value="Public Overridable Sub Add (value As Control)" />
<MemberSignature Language="F#" Value="abstract member Add : System.Windows.Forms.Control -> unit
override this.Add : System.Windows.Forms.Control -> unit" Usage="controlCollection.Add value" />
<MemberSignature Language="C++ CLI" Value="public:
 virtual void Add(System::Windows::Forms::Control ^ value);" />
<MemberSignature Language="C#" Value="public virtual void Add (System.Windows.Forms.Control? value);" FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="value" Type="System.Windows.Forms.Control" />
</Parameters>
<Docs>
<param name="value">The <see cref="T:System.Windows.Forms.Control" /> to add to the control collection.</param>
<summary>Adds the specified control to the control collection.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Windows.Forms.Control.ControlCollection.Add%2A> method allows you to add <xref:System.Windows.Forms.Control> objects to the end of the control collection.
You can also add new <xref:System.Windows.Forms.Control> objects to the collection by using the <xref:System.Windows.Forms.Control.ControlCollection.AddRange%2A> method.
To remove a <xref:System.Windows.Forms.Control> that you previously added, use the <xref:System.Windows.Forms.Control.ControlCollection.Remove%2A>, <xref:System.Windows.Forms.Control.ControlCollection.RemoveAt%2A>, or <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> methods.
> [!NOTE]
> A <xref:System.Windows.Forms.Control> can only be assigned to one <xref:System.Windows.Forms.Control.ControlCollection> at a time. If the <xref:System.Windows.Forms.Control> is already a child of another control it is removed from that control before it is added to another control.
## Examples
The following code example adds a <xref:System.Windows.Forms.Control> to the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel>. The example requires that you have created a <xref:System.Windows.Forms.Panel> control and a <xref:System.Windows.Forms.Button> control on a <xref:System.Windows.Forms.Form>. When the button is clicked, a <xref:System.Windows.Forms.TextBox> control is added to the panel's <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet2":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet2":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet2":::
]]></format>
</remarks>
<exception cref="T:System.Exception">The specified control is a top-level control, or a circular control reference would result if this control were added to the control collection.</exception>
<exception cref="T:System.ArgumentException">The object assigned to the <paramref name="value" /> parameter is not a <see cref="T:System.Windows.Forms.Control" />.</exception>
<block subset="none" type="overrides">
<para>When overriding <see cref="M:System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)" /> in a derived class, be sure to call the base class's <see cref="M:System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)" /> method to ensure that the control is added to the collection.</para>
</block>
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.Remove(System.Windows.Forms.Control)" />
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.RemoveAt(System.Int32)" />
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.AddRange(System.Windows.Forms.Control[])" />
</Docs>
</Member>
<Member MemberName="AddRange">
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<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void AddRange(class System.Windows.Forms.Control[] controls) cil managed" />
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<Attribute FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-8.0;windowsdesktop-9.0">
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<AttributeName Language="F#">[<System.ComponentModel.DesignerSerializationVisibility(System.ComponentModel.DesignerSerializationVisibility.Hidden)>]</AttributeName>
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<Attribute FrameworkAlternate="windowsdesktop-7.0">
<AttributeName Language="C#">[System.ComponentModel.DesignerSerializationVisibility]</AttributeName>
<AttributeName Language="F#">[<System.ComponentModel.DesignerSerializationVisibility>]</AttributeName>
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<ReturnValue>
<ReturnType>System.Void</ReturnType>
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<Parameters>
<Parameter Name="controls" Type="System.Windows.Forms.Control[]">
<Attributes>
<Attribute FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-9.0">
<AttributeName Language="C#">[System.ParamArray]</AttributeName>
<AttributeName Language="F#">[<System.ParamArray>]</AttributeName>
</Attribute>
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</Parameter>
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<Docs>
<param name="controls">An array of <see cref="T:System.Windows.Forms.Control" /> objects to add to the collection.</param>
<summary>Adds an array of control objects to the collection.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Windows.Forms.Control> objects contained in the `controls` array are appended to the end of the collection.
You can use the <xref:System.Windows.Forms.Control.ControlCollection.AddRange%2A> method to quickly add a group of <xref:System.Windows.Forms.Control> objects to the collection instead of manually adding each <xref:System.Windows.Forms.Control> to the collection using the <xref:System.Windows.Forms.Control.ControlCollection.Add%2A> method.
To remove a <xref:System.Windows.Forms.Control> that you previously added, use the <xref:System.Windows.Forms.Control.ControlCollection.Remove%2A>, <xref:System.Windows.Forms.Control.ControlCollection.RemoveAt%2A>, or <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> methods.
## Examples
The following code example adds two <xref:System.Windows.Forms.Control> objects to the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel>. The example requires that you have created a <xref:System.Windows.Forms.Panel> control and a <xref:System.Windows.Forms.Button> control on a <xref:System.Windows.Forms.Form>. When the button is clicked, two <xref:System.Windows.Forms.RadioButton> controls are added to the panel's <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet3":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet3":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet3":::
]]></format>
</remarks>
<block subset="none" type="overrides">
<para>When overriding <see cref="M:System.Windows.Forms.Control.ControlCollection.AddRange(System.Windows.Forms.Control[])" /> in a derived class, be sure to call the base class's <see cref="M:System.Windows.Forms.Control.ControlCollection.AddRange(System.Windows.Forms.Control[])" /> method to ensure that the controls are added to the collection.</para>
</block>
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)" />
</Docs>
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<Member MemberName="Clear">
<MemberSignature Language="C#" Value="public virtual void Clear ();" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void Clear() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.Clear" />
<MemberSignature Language="VB.NET" Value="Public Overridable Sub Clear ()" />
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<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
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<ReturnType>System.Void</ReturnType>
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<Parameters />
<Docs>
<summary>Removes all controls from the collection.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
You can use the <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> method to remove the entire collection of controls from a parent control.
To remove an individual control from the collection, use the <xref:System.Windows.Forms.Control.ControlCollection.Remove%2A> or <xref:System.Windows.Forms.Control.ControlCollection.RemoveAt%2A> methods.
> [!IMPORTANT]
> Calling the <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> method does not remove control handles from memory. You must explicitly call the <xref:System.Windows.Forms.Control.Dispose%2A> method to avoid memory leaks.
To add new <xref:System.Windows.Forms.Control> objects to the collection, use the <xref:System.Windows.Forms.Control.ControlCollection.Add%2A> or <xref:System.Windows.Forms.Control.ControlCollection.AddRange%2A> methods.
## Examples
The following code example removes all the <xref:System.Windows.Forms.Control> objects in the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel>. The example requires that you have created a <xref:System.Windows.Forms.Panel>, a <xref:System.Windows.Forms.Button>, and at least one other control on a <xref:System.Windows.Forms.Form>. The other controls are added to the <xref:System.Windows.Forms.Panel> control, and the <xref:System.Windows.Forms.Panel> added to the <xref:System.Windows.Forms.Form>. When the button is clicked, all the controls contained in the panel are removed from the <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet1":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet1":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet1":::
]]></format>
</remarks>
<block subset="none" type="overrides">
<para>When overriding <see cref="M:System.Windows.Forms.Control.ControlCollection.Clear" /> in a derived class, be sure to call the base class's <see cref="M:System.Windows.Forms.Control.ControlCollection.Clear" /> method to ensure that all the controls are removed from the collection.</para>
</block>
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<Member MemberName="Contains">
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<Parameter Name="control" Type="System.Windows.Forms.Control" />
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<Docs>
<param name="control">The <see cref="T:System.Windows.Forms.Control" /> to locate in the collection.</param>
<summary>Determines whether the specified control is a member of the collection.</summary>
<returns>
<see langword="true" /> if the <see cref="T:System.Windows.Forms.Control" /> is a member of the collection; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
This method enables you to determine whether a <xref:System.Windows.Forms.Control> is a member of the collection before attempting to perform operations on the <xref:System.Windows.Forms.Control>. You can use this method to confirm that a <xref:System.Windows.Forms.Control> has been added to or is still a member of the collection.
## Examples
The following code example removes a <xref:System.Windows.Forms.Control> from the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel> if it is a member of the collection. The example requires that you have created a <xref:System.Windows.Forms.Panel>, a <xref:System.Windows.Forms.Button>, and at least one <xref:System.Windows.Forms.RadioButton> control on a <xref:System.Windows.Forms.Form>. The <xref:System.Windows.Forms.RadioButton> controls are added to the <xref:System.Windows.Forms.Panel> control, and the <xref:System.Windows.Forms.Panel> control added to the <xref:System.Windows.Forms.Form>. When the button is clicked, the radio button named `removeButton` is removed from the <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet4":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet4":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet4":::
]]></format>
</remarks>
<altmember cref="T:System.Windows.Forms.Control" />
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<Parameter Name="key" Type="System.String" Index="0" FrameworkAlternate="net-5.0;net-6.0;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;netframework-4.8.1;windowsdesktop-8.0;windowsdesktop-9.0;windowsdesktop-10.0" />
</Parameters>
<Docs>
<param name="key">The key to locate in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</param>
<summary>Determines whether the <see cref="T:System.Windows.Forms.Control.ControlCollection" /> contains an item with the specified key.</summary>
<returns>
<see langword="true" /> if the <see cref="T:System.Windows.Forms.Control.ControlCollection" /> contains an item with the specified key; otherwise, <see langword="false" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Windows.Forms.Control.Name%2A> property of a <xref:System.Windows.Forms.Control> corresponds to the key for a <xref:System.Windows.Forms.Control> in the <xref:System.Windows.Forms.Control.ControlCollection>.
]]></format>
</remarks>
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<Parameter Name="index" Type="System.Int32" Index="1" FrameworkAlternate="netframework-1.1" />
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<Docs>
<param name="dest">The one-dimensional array that is the destination of the elements copied from the collection. The array must have zero-based indexing.</param>
<param name="index">The zero-based index in <paramref name="dest" /> at which to begin copying.</param>
<summary>Copies the elements of the collection to an array, starting at a particular array index.</summary>
<remarks>To be added.</remarks>
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<summary>Gets the number of elements contained in the collection.</summary>
<value>The number of elements contained in the collection.</value>
<remarks>To be added.</remarks>
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<param name="other">The object to compare with the current object.</param>
<summary>Specifies whether the current collection object and the specified object are equal.</summary>
<returns>
<see langword="true" /> if this instance and <paramref name="other" /> are equal; otherwise, <see langword="false" />.</returns>
<remarks>To be added.</remarks>
</Docs>
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<Member MemberName="Find">
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<MemberSignature Language="ILAsm" Value=".method public hidebysig instance class System.Windows.Forms.Control[] Find(string key, bool searchAllChildren) cil managed" />
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<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Windows.Forms.Control[]</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="key" Type="System.String" Index="0" FrameworkAlternate="net-5.0;net-6.0;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;netframework-4.8.1;windowsdesktop-8.0;windowsdesktop-9.0;windowsdesktop-10.0" />
<Parameter Name="searchAllChildren" Type="System.Boolean" Index="1" FrameworkAlternate="net-5.0;net-6.0;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;netframework-4.8.1;windowsdesktop-8.0;windowsdesktop-9.0;windowsdesktop-10.0" />
</Parameters>
<Docs>
<param name="key">The key to locate in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</param>
<param name="searchAllChildren">
<see langword="true" /> to search all child controls; otherwise, <see langword="false" />.</param>
<summary>Searches for controls by their <see cref="P:System.Windows.Forms.Control.Name" /> property and builds an array of all the controls that match.</summary>
<returns>An array of type <see cref="T:System.Windows.Forms.Control" /> containing the matching controls.</returns>
<remarks>To be added.</remarks>
<exception cref="T:System.ArgumentException">
<paramref name="key" /> is <see langword="null" /> or the empty string ("").</exception>
</Docs>
</Member>
<MemberGroup MemberName="GetChildIndex">
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Docs>
<summary>Retrieves the index of a control within the control collection.</summary>
</Docs>
</MemberGroup>
<Member MemberName="GetChildIndex">
<MemberSignature Language="C#" Value="public int GetChildIndex (System.Windows.Forms.Control child);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig instance int32 GetChildIndex(class System.Windows.Forms.Control child) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.GetChildIndex(System.Windows.Forms.Control)" />
<MemberSignature Language="VB.NET" Value="Public Function GetChildIndex (child As Control) As Integer" />
<MemberSignature Language="F#" Value="member this.GetChildIndex : System.Windows.Forms.Control -> int" Usage="controlCollection.GetChildIndex child" />
<MemberSignature Language="C++ CLI" Value="public:
 int GetChildIndex(System::Windows::Forms::Control ^ child);" />
<MemberType>Method</MemberType>
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<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="netframework-4.0">
<AttributeName Language="C#">[System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")>]</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.Int32</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="child" Type="System.Windows.Forms.Control" />
</Parameters>
<Docs>
<param name="child">The <see cref="T:System.Windows.Forms.Control" /> to search for in the control collection.</param>
<summary>Retrieves the index of the specified child control within the control collection.</summary>
<returns>A zero-based index value that represents the location of the specified child control within the control collection.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The control with an index value of zero is at the top of the z-order, and higher numbers are closer to the bottom.
]]></format>
</remarks>
<exception cref="T:System.ArgumentException">The <paramref name="child" /> control is not in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</exception>
<altmember cref="M:System.Windows.Forms.Control.BringToFront" />
</Docs>
</Member>
<Member MemberName="GetChildIndex">
<MemberSignature Language="C#" Value="public int GetChildIndex (System.Windows.Forms.Control child, bool throwException);" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig instance int32 GetChildIndex(class System.Windows.Forms.Control child, bool throwException) cil managed" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.GetChildIndex(System.Windows.Forms.Control,System.Boolean)" />
<MemberSignature Language="VB.NET" Value="Public Function GetChildIndex (child As Control, throwException As Boolean) As Integer" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="F#" Value="member this.GetChildIndex : System.Windows.Forms.Control * bool -> int" Usage="controlCollection.GetChildIndex (child, throwException)" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="C++ CLI" Value="public:
 int GetChildIndex(System::Windows::Forms::Control ^ child, bool throwException);" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="C#" Value="public virtual int GetChildIndex (System.Windows.Forms.Control child, bool throwException);" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
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<MemberSignature Language="F#" Value="abstract member GetChildIndex : System.Windows.Forms.Control * bool -> int
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<MemberSignature Language="C++ CLI" Value="public:
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<MemberType>Method</MemberType>
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<AssemblyName>System.Windows.Forms</AssemblyName>
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<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
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<ReturnValue>
<ReturnType>System.Int32</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="child" Type="System.Windows.Forms.Control" />
<Parameter Name="throwException" Type="System.Boolean" />
</Parameters>
<Docs>
<param name="child">The <see cref="T:System.Windows.Forms.Control" /> to search for in the control collection.</param>
<param name="throwException">
<see langword="true" /> to throw an exception if the <see cref="T:System.Windows.Forms.Control" /> specified in the <paramref name="child" /> parameter is not a control in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />; otherwise, <see langword="false" />.</param>
<summary>Retrieves the index of the specified child control within the control collection, and optionally raises an exception if the specified control is not within the control collection.</summary>
<returns>A zero-based index value that represents the location of the specified child control within the control collection; otherwise -1 if the specified <see cref="T:System.Windows.Forms.Control" /> is not found in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The control with an index value of zero is at the top of the z-order, and higher numbers are closer to the bottom. A return value of -1 is returned only when the `throwException` parameter is `false`.
]]></format>
</remarks>
<exception cref="T:System.ArgumentException">The <paramref name="child" /><see cref="T:System.Windows.Forms.Control" /> is not in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />, and the <paramref name="throwException" /> parameter value is <see langword="true" />.</exception>
<altmember cref="M:System.Windows.Forms.Control.BringToFront" />
</Docs>
</Member>
<Member MemberName="GetEnumerator">
<MemberSignature Language="C#" Value="public System.Collections.IEnumerator GetEnumerator ();" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance class System.Collections.IEnumerator GetEnumerator() cil managed" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.GetEnumerator" />
<MemberSignature Language="VB.NET" Value="Public Function GetEnumerator () As IEnumerator" FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="F#" Value="abstract member GetEnumerator : unit -> System.Collections.IEnumerator
override this.GetEnumerator : unit -> System.Collections.IEnumerator" Usage="controlCollection.GetEnumerator " FrameworkAlternate="netframework-1.1" />
<MemberSignature Language="C++ CLI" Value="public:
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<MemberSignature Language="C#" Value="public override System.Collections.IEnumerator GetEnumerator ();" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig virtual instance class System.Collections.IEnumerator GetEnumerator() cil managed" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberSignature Language="VB.NET" Value="Public Overrides Function GetEnumerator () As IEnumerator" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberSignature Language="F#" Value="override this.GetEnumerator : unit -> System.Collections.IEnumerator" Usage="controlCollection.GetEnumerator " FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberSignature Language="C++ CLI" Value="public:
 override System::Collections::IEnumerator ^ GetEnumerator();" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-10.0;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Method</MemberType>
<Implements>
<InterfaceMember>M:System.Collections.IEnumerable.GetEnumerator</InterfaceMember>
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<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2">
<AttributeName Language="C#">[System.Runtime.TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.TargetedPatchingOptOut("Performance critical to inline across NGen image boundaries")>]</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.Collections.IEnumerator</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>Retrieves a reference to an enumerator object that is used to iterate over a <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</summary>
<returns>An <see cref="T:System.Collections.IEnumerator" />.</returns>
<remarks>To be added.</remarks>
</Docs>
</Member>
<Member MemberName="GetHashCode">
<MemberSignature Language="C#" Value="public override int GetHashCode ();" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig virtual instance int32 GetHashCode() cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.GetHashCode" />
<MemberSignature Language="VB.NET" Value="Public Overrides Function GetHashCode () As Integer" />
<MemberSignature Language="F#" Value="override this.GetHashCode : unit -> int" Usage="controlCollection.GetHashCode " />
<MemberSignature Language="C++ CLI" Value="public:
 override int GetHashCode();" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Int32</ReturnType>
</ReturnValue>
<Parameters />
<Docs>
<summary>Returns the hash code for this instance.</summary>
<returns>A 32-bit signed integer hash code.</returns>
<remarks>To be added.</remarks>
</Docs>
</Member>
<Member MemberName="IndexOf">
<MemberSignature Language="C#" Value="public int IndexOf (System.Windows.Forms.Control control);" FrameworkAlternate="netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig instance int32 IndexOf(class System.Windows.Forms.Control control) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.IndexOf(System.Windows.Forms.Control)" />
<MemberSignature Language="VB.NET" Value="Public Function IndexOf (control As Control) As Integer" />
<MemberSignature Language="F#" Value="member this.IndexOf : System.Windows.Forms.Control -> int" Usage="controlCollection.IndexOf control" />
<MemberSignature Language="C++ CLI" Value="public:
 int IndexOf(System::Windows::Forms::Control ^ control);" />
<MemberSignature Language="C#" Value="public int IndexOf (System.Windows.Forms.Control? control);" FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Int32</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="control" Type="System.Windows.Forms.Control" />
</Parameters>
<Docs>
<param name="control">The <see cref="T:System.Windows.Forms.Control" /> to locate in the collection.</param>
<summary>Retrieves the index of the specified control in the control collection.</summary>
<returns>A zero-based index value that represents the position of the specified <see cref="T:System.Windows.Forms.Control" /> in the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
If the control is not found in the collection, the <xref:System.Windows.Forms.Control.ControlCollection.IndexOf%2A> method return value is -1.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="IndexOfKey">
<MemberSignature Language="C#" Value="public virtual int IndexOfKey (string key);" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance int32 IndexOfKey(string key) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.IndexOfKey(System.String)" />
<MemberSignature Language="VB.NET" Value="Public Overridable Function IndexOfKey (key As String) As Integer" />
<MemberSignature Language="F#" Value="abstract member IndexOfKey : string -> int
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<MemberSignature Language="C++ CLI" Value="public:
 virtual int IndexOfKey(System::String ^ key);" />
<MemberSignature Language="C#" Value="public virtual int IndexOfKey (string? key);" FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
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<ReturnValue>
<ReturnType>System.Int32</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="key" Type="System.String" Index="0" FrameworkAlternate="net-5.0;net-6.0;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;netframework-4.8.1;windowsdesktop-8.0;windowsdesktop-9.0;windowsdesktop-10.0" />
</Parameters>
<Docs>
<param name="key">The name of the control to search for.</param>
<summary>Retrieves the index of the first occurrence of the specified item within the collection.</summary>
<returns>The zero-based index of the first occurrence of the control with the specified name in the collection.</returns>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
If <xref:System.Windows.Forms.Control.ControlCollection.IndexOfKey%2A> is called successively, the last returned index will be checked for a key match first, and if there is no match, the search starts at the beginning of the collection.
The key comparison is not case-sensitive. If the `key` parameter is `null` or an empty string, or an item with the specified key is not found, <xref:System.Windows.Forms.Control.ControlCollection.IndexOfKey%2A> returns -1.
The <xref:System.Windows.Forms.Control.Name%2A> property of a <xref:System.Windows.Forms.Control> corresponds to the key for a <xref:System.Windows.Forms.Control> in the <xref:System.Windows.Forms.Control.ControlCollection>.
]]></format>
</remarks>
</Docs>
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<MemberSignature Language="C#" Value="public bool IsReadOnly { get; }" />
<MemberSignature Language="ILAsm" Value=".property instance bool IsReadOnly" />
<MemberSignature Language="DocId" Value="P:System.Windows.Forms.Control.ControlCollection.IsReadOnly" />
<MemberSignature Language="VB.NET" Value="Public ReadOnly Property IsReadOnly As Boolean" />
<MemberSignature Language="F#" Value="member this.IsReadOnly : bool" Usage="System.Windows.Forms.Control.ControlCollection.IsReadOnly" />
<MemberSignature Language="C++ CLI" Value="public:
 property bool IsReadOnly { bool get(); };" />
<MemberType>Property</MemberType>
<Implements>
<InterfaceMember>P:System.Collections.IList.IsReadOnly</InterfaceMember>
</Implements>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Boolean</ReturnType>
</ReturnValue>
<Docs>
<summary>Gets a value that indicates whether this collection object is read-only.</summary>
<value>
<see langword="true" /> if the current instance is read-only; otherwise, <see langword="false" />.</value>
<remarks>To be added.</remarks>
</Docs>
</Member>
<MemberGroup MemberName="Item">
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Docs>
<summary>Indicates a <see cref="T:System.Windows.Forms.Control" /> in the collection.</summary>
</Docs>
</MemberGroup>
<Member MemberName="Item">
<MemberSignature Language="C#" Value="public virtual System.Windows.Forms.Control this[int index] { get; }" />
<MemberSignature Language="ILAsm" Value=".property instance class System.Windows.Forms.Control Item(int32)" />
<MemberSignature Language="DocId" Value="P:System.Windows.Forms.Control.ControlCollection.Item(System.Int32)" />
<MemberSignature Language="VB.NET" Value="Default Public Overridable ReadOnly Property Item(index As Integer) As Control" />
<MemberSignature Language="F#" Value="member this.Item(int) : System.Windows.Forms.Control" Usage="System.Windows.Forms.Control.ControlCollection.Item" />
<MemberSignature Language="C++ CLI" Value="public:
 virtual property System::Windows::Forms::Control ^ default[int] { System::Windows::Forms::Control ^ get(int index); };" />
<MemberType>Property</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Windows.Forms.Control</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="index" Type="System.Int32" />
</Parameters>
<Docs>
<param name="index">The index of the control to retrieve from the control collection.</param>
<summary>Indicates the <see cref="T:System.Windows.Forms.Control" /> at the specified indexed location in the collection.</summary>
<value>The <see cref="T:System.Windows.Forms.Control" /> located at the specified index location within the control collection.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
To retrieve a <xref:System.Windows.Forms.Control> from the <xref:System.Windows.Forms.Control.ControlCollection>, reference the collection object with a specific index value. The index value of the <xref:System.Windows.Forms.Control.ControlCollection> is a zero-based index.
]]></format>
</remarks>
<exception cref="T:System.ArgumentOutOfRangeException">The <paramref name="index" /> value is less than zero or is greater than or equal to the number of controls in the collection.</exception>
<altmember cref="P:System.Windows.Forms.Control.Controls" />
</Docs>
</Member>
<Member MemberName="Item">
<MemberSignature Language="C#" Value="public virtual System.Windows.Forms.Control this[string key] { get; }" FrameworkAlternate="netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0" />
<MemberSignature Language="ILAsm" Value=".property instance class System.Windows.Forms.Control Item(string)" />
<MemberSignature Language="DocId" Value="P:System.Windows.Forms.Control.ControlCollection.Item(System.String)" />
<MemberSignature Language="VB.NET" Value="Default Public Overridable ReadOnly Property Item(key As String) As Control" />
<MemberSignature Language="F#" Value="member this.Item(string) : System.Windows.Forms.Control" Usage="System.Windows.Forms.Control.ControlCollection.Item" />
<MemberSignature Language="C++ CLI" Value="public:
 virtual property System::Windows::Forms::Control ^ default[System::String ^] { System::Windows::Forms::Control ^ get(System::String ^ key); };" />
<MemberSignature Language="C#" Value="public virtual System.Windows.Forms.Control? this[string? key] { get; }" FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Property</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-8.0;windowsdesktop-9.0">
<AttributeName Language="C#">[System.Runtime.CompilerServices.Nullable(2)]</AttributeName>
<AttributeName Language="F#">[<System.Runtime.CompilerServices.Nullable(2)>]</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.Windows.Forms.Control</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="key" Type="System.String" Index="0" FrameworkAlternate="net-5.0;net-6.0;netcore-3.0;netcore-3.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0;windowsdesktop-7.0;netframework-4.8.1;windowsdesktop-8.0;windowsdesktop-9.0;windowsdesktop-10.0" />
</Parameters>
<Docs>
<param name="key">The name of the control to retrieve from the control collection.</param>
<summary>Indicates a <see cref="T:System.Windows.Forms.Control" /> with the specified key in the collection.</summary>
<value>The <see cref="T:System.Windows.Forms.Control" /> with the specified key within the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</value>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
The <xref:System.Windows.Forms.Control.Name%2A> property of a <xref:System.Windows.Forms.Control> corresponds to the key for a <xref:System.Windows.Forms.Control> in the <xref:System.Windows.Forms.Control.ControlCollection>.
]]></format>
</remarks>
</Docs>
</Member>
<Member MemberName="Owner">
<MemberSignature Language="C#" Value="public System.Windows.Forms.Control Owner { get; }" />
<MemberSignature Language="ILAsm" Value=".property instance class System.Windows.Forms.Control Owner" />
<MemberSignature Language="DocId" Value="P:System.Windows.Forms.Control.ControlCollection.Owner" />
<MemberSignature Language="VB.NET" Value="Public ReadOnly Property Owner As Control" />
<MemberSignature Language="F#" Value="member this.Owner : System.Windows.Forms.Control" Usage="System.Windows.Forms.Control.ControlCollection.Owner" />
<MemberSignature Language="C++ CLI" Value="public:
 property System::Windows::Forms::Control ^ Owner { System::Windows::Forms::Control ^ get(); };" />
<MemberType>Property</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<Attributes>
<Attribute FrameworkAlternate="netframework-4.0">
<AttributeName Language="C#">[get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")]</AttributeName>
<AttributeName Language="F#">[<get: System.Runtime.TargetedPatchingOptOut("Performance critical to inline this type of method across NGen image boundaries")>]</AttributeName>
</Attribute>
</Attributes>
<ReturnValue>
<ReturnType>System.Windows.Forms.Control</ReturnType>
</ReturnValue>
<Docs>
<summary>Gets the control that owns this <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</summary>
<value>The <see cref="T:System.Windows.Forms.Control" /> that owns this <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</value>
<remarks>To be added.</remarks>
</Docs>
</Member>
<Member MemberName="Remove">
<MemberSignature Language="C#" Value="public virtual void Remove (System.Windows.Forms.Control value);" FrameworkAlternate="netframework-1.1;netframework-2.0;netframework-3.0;netframework-3.5;netframework-4.0;netframework-4.5;netframework-4.5.1;netframework-4.5.2;netframework-4.6;netframework-4.6.1;netframework-4.6.2;netframework-4.7;netframework-4.7.1;netframework-4.7.2;netframework-4.8;netframework-4.8.1;windowsdesktop-3.0;windowsdesktop-3.1;windowsdesktop-5.0;windowsdesktop-6.0" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void Remove(class System.Windows.Forms.Control value) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.Remove(System.Windows.Forms.Control)" />
<MemberSignature Language="VB.NET" Value="Public Overridable Sub Remove (value As Control)" />
<MemberSignature Language="F#" Value="abstract member Remove : System.Windows.Forms.Control -> unit
override this.Remove : System.Windows.Forms.Control -> unit" Usage="controlCollection.Remove value" />
<MemberSignature Language="C++ CLI" Value="public:
 virtual void Remove(System::Windows::Forms::Control ^ value);" />
<MemberSignature Language="C#" Value="public virtual void Remove (System.Windows.Forms.Control? value);" FrameworkAlternate="windowsdesktop-10.0;windowsdesktop-7.0;windowsdesktop-8.0;windowsdesktop-9.0" />
<MemberType>Method</MemberType>
<AssemblyInfo>
<AssemblyName>System.Windows.Forms</AssemblyName>
<AssemblyVersion>1.0.5000.0</AssemblyVersion>
<AssemblyVersion>2.0.0.0</AssemblyVersion>
<AssemblyVersion>4.0.0.0</AssemblyVersion>
<AssemblyVersion>5.0.0.0</AssemblyVersion>
<AssemblyVersion>6.0.0.0</AssemblyVersion>
<AssemblyVersion>7.0.0.0</AssemblyVersion>
<AssemblyVersion>8.0.0.0</AssemblyVersion>
<AssemblyVersion>9.0.0.0</AssemblyVersion>
<AssemblyVersion>10.0.0.0</AssemblyVersion>
</AssemblyInfo>
<ReturnValue>
<ReturnType>System.Void</ReturnType>
</ReturnValue>
<Parameters>
<Parameter Name="value" Type="System.Windows.Forms.Control" />
</Parameters>
<Docs>
<param name="value">The <see cref="T:System.Windows.Forms.Control" /> to remove from the <see cref="T:System.Windows.Forms.Control.ControlCollection" />.</param>
<summary>Removes the specified control from the control collection.</summary>
<remarks>
<format type="text/markdown"><![CDATA[
## Remarks
When a <xref:System.Windows.Forms.Control> is removed from the control collection, all subsequent controls are moved up one position in the collection.
You can also remove a <xref:System.Windows.Forms.Control> by using the <xref:System.Windows.Forms.Control.ControlCollection.RemoveAt%2A> method, or remove all controls by using the <xref:System.Windows.Forms.Control.ControlCollection.Clear%2A> method.
To add new <xref:System.Windows.Forms.Control> objects to the collection, use the <xref:System.Windows.Forms.Control.ControlCollection.Add%2A> or <xref:System.Windows.Forms.Control.ControlCollection.AddRange%2A> methods.
## Examples
The following code example removes a <xref:System.Windows.Forms.Control> from the <xref:System.Windows.Forms.Control.ControlCollection> of the derived class <xref:System.Windows.Forms.Panel> if it is a member of the collection. The example requires that you have created a <xref:System.Windows.Forms.Panel>, a <xref:System.Windows.Forms.Button>, and one or more <xref:System.Windows.Forms.RadioButton> controls on a <xref:System.Windows.Forms.Form>. The <xref:System.Windows.Forms.RadioButton> controls are added to the <xref:System.Windows.Forms.Panel> control, and the <xref:System.Windows.Forms.Panel> control is added to the <xref:System.Windows.Forms.Form>. When the button is clicked, the radio button named `radioButton2` is removed from the <xref:System.Windows.Forms.Control.ControlCollection>.
:::code language="cpp" source="~/snippets/cpp/VS_Snippets_Winforms/ControlCollection/CPP/controlcollection.cpp" id="Snippet4":::
:::code language="csharp" source="~/snippets/csharp/System.Windows.Forms/Control+ControlCollection/Overview/controlcollection.cs" id="Snippet4":::
:::code language="vb" source="~/snippets/visualbasic/VS_Snippets_Winforms/ControlCollection/VB/controlcollection.vb" id="Snippet4":::
]]></format>
</remarks>
<block subset="none" type="overrides">
<para>When overriding <see cref="M:System.Windows.Forms.Control.ControlCollection.Remove(System.Windows.Forms.Control)" /> in a derived class, be sure to call the base class's <see cref="M:System.Windows.Forms.Control.ControlCollection.Remove(System.Windows.Forms.Control)" /> method to ensure that the control is removed from the collection.</para>
</block>
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.RemoveAt(System.Int32)" />
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.Clear" />
<altmember cref="M:System.Windows.Forms.Control.ControlCollection.Add(System.Windows.Forms.Control)" />
</Docs>
</Member>
<Member MemberName="RemoveAt">
<MemberSignature Language="C#" Value="public void RemoveAt (int index);" />
<MemberSignature Language="ILAsm" Value=".method public hidebysig newslot virtual instance void RemoveAt(int32 index) cil managed" />
<MemberSignature Language="DocId" Value="M:System.Windows.Forms.Control.ControlCollection.RemoveAt(System.Int32)" />
<MemberSignature Language="VB.NET" Value="Public Sub RemoveAt (index As Integer)" />
<MemberSignature Language="F#" Value="abstract member RemoveAt : int -> unit
override this.RemoveAt : int -> unit" Usage="controlCollection.RemoveAt index" />
<MemberSignature Language="C++ CLI" Value="public:
 virtual void RemoveAt(int index);" />
<MemberType>Method</MemberType>