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ListView.CheckedListViewItemCollection.ContainsKey Method

Determines if a column with the specified key is contained in the collection.

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

public virtual bool ContainsKey(
	string key


Type: System.String
The name of the item to search for.

Return Value

Type: System.Boolean
true if an item with the specified key is contained in the collection; otherwise, false.


The owner ListView is in virtual mode.

The Name property of a ListViewItem corresponds to the key for an item in the ListView.CheckedListViewItemCollection.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.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.

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