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ToolboxItemCollection.Contains Method

Indicates whether the collection contains the specified ToolboxItem.

Namespace:  System.Drawing.Design
Assembly:  System.Drawing (in System.Drawing.dll)

public bool Contains(
	ToolboxItem value


Type: System.Drawing.Design.ToolboxItem

A ToolboxItem to search the collection for.

Return Value

Type: System.Boolean
true if the collection contains the specified object; otherwise, false.

The following code example demonstrates using the Contains method of a ToolboxItemCollection.

// If the collection contains the specified ToolboxItem,  
// retrieve the collection index of the specified item. 
int indx = -1;
if( collection.Contains( item ) )
    indx = collection.IndexOf( item );

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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