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View this topic on docs.devexpress.com (Learn more)

TreeListNode.StateImageIndex Property

Gets or sets the index of the node's state image from the TreeList.StateImageList collection.

Namespace:DevExpress.XtraTreeList.Nodes
Assembly:DevExpress.XtraTreeList.v19.2.dll

Expanded Syntax

Property value

Type: Int32
An integer value that specifies the node's state image index.
The default is -1.

Expanded Remarks

Nodes can display the following icons:

  • Select Image - two icons that automatically switch when a node gets / loses the focus.
  • State Image - any custom icon.

Expanded State Image

State image: Specify image source

The TreeList.StateImageList property specifies an ordered (indexed) collection that stores images. You can use the following image collections:

State image: Assign images to nodes

To specify the index of the image displayed in a particular node, use the following properties and events:

  • the StateImageIndex property — gets or sets the image index.

  • the TreeList.GetStateImage event — fires before a node is displayed and allows you to specify (override) the image index for the processed node.

If the index is out of range, no image is displayed.

State image: Respond to clicks

The TreeList.RowStateImageClick event fires when a state image is clicked.

Expanded Example

The code below shows how to assign select and state images to nodes.

Expanded See Also

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