ITreeControl.HotTrackAutoExpand

Syntax

HotTrackAutoExpand: Boolean;

Description

The HotTrackAutoExpand property determines whether the state of the child elements tree is changed on clicking on the selected element.

Comments

If the property is set to True, the hierarchy of child elements is collapsed or expanded on clicking on the selected element, otherwise, the state of the hierarchy of the child elements is not changed.

On clicking on the selected node, its selection changes in accordance with settings specified in the SelectionMode property.

The HotTrackAutoExpand property is relevant if the HotTrack property is set to True.

NOTE. If the HotTrackAutoExpand property is set to True, the state of the tree is changed after the click on the element with the small delay. The change of the tree state should not be available on the double-click on the element.