ImageKey Property

TreeView.ImageKey Property

Gets or sets the key of the default image for each node in the TreeView control when it is in an unselected state.

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

[TypeConverterAttribute(typeof(ImageKeyConverter))]
[RelatedImageListAttribute("ImageList")]
public string ImageKey { get; set; }

Property Value

Type: System.String
The key of the default image shown for each node TreeView control when the node is in an unselected state.

The ImageKey property is case-insensitive.

If a TreeNode does not have an image set, the image specified by the ImageKey property will be shown when the node is not selected. When the node is selected, the first item in the ImageList will be shown.

The ImageKey and ImageIndex properties are mutually exclusive, meaning if one is set, the other is ignored. If you set the ImageKey property, the ImageIndex property is automatically set to -1. Alternatively, if you set the ImageIndex property, the ImageKey is automatically set to an empty string ("").

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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