Gets or sets the index of the state image displayed within the node.
An integer value representing the node’s state image’s index.
Initially, the StateImageIndex property contains the zero-based index of the image specified by the node’s TreeListNode.StateImageIndex property. This property can be used in the following ways:
- read the property value to paint the default image;
- change the StateImageIndex property value and leave the CustomDrawEventArgs.Handled property set to false. This forces the control to paint the node’s state image using the default mechanism but with a different image.
Assigning values to this property has no effect in the following cases:
- the control’s TreeList.StateImageList property is a null reference;
- the assigned value is less than zero or exceeds the available image index.