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CheckedListBox.CheckedIndexCollection.IList.Contains Method

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Determines whether the specified index is located within the CheckedListBox.CheckedIndexCollection. For a description of this member, see IList.Contains.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

bool IList.Contains(
	Object index


Type: System.Object

The index to locate in the collection.

Return Value

Type: System.Boolean
true if the specified index from the CheckedListBox.ObjectCollection for the CheckedListBox is an item in this collection; otherwise, false.



This member is an explicit interface member implementation. It can be used only when the CheckedListBox.CheckedIndexCollection instance is cast to an IList interface.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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