This documentation is archived and is not being maintained.

ListView.CheckedListViewItemCollection.Contains Method

Determines whether the specified item is located in the collection.

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

public bool Contains(
	ListViewItem item


Type: System.Windows.Forms.ListViewItem
A ListViewItem representing the item to locate in the collection.

Return Value

Type: System.Boolean
true if the specified item is located in the collection; otherwise, false.

The Contains method enables you to determine whether an item from the ListView.ListViewItemCollection is a one of the checked items stored in the ListView.CheckedListViewItemCollection. Once you know that an item is in the checked item collection, you can use the ListView.CheckedListViewItemCollection.IndexOf method to determine the position of the item in the ListView.CheckedListViewItemCollection.

.NET Framework

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

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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