TdxBarTreeViewCombo Events

A deprecated bar item combo box with a tree-like drop-down window.

Name	Description
OnCanSelectNode	Generated before setting the selected node.
OnChange	Occurs when the text of an edit control changes. Inherited from TdxBarWindowItem.
OnChanging	Occurs each time the selected node is changed.
OnCheckKeyForDropDownWindow	Occurs when users press a key in a linked item control. Inherited from TCustomdxBarCombo.
OnClick	Allows you to respond to clicks on the bar item. Inherited from TdxBarItem.
OnCloseUp	Occurs when closing a dropdown window. Inherited from TCustomdxBarCombo.
OnCollapsed	Occurs after a dropdown tree node collapses.
OnCollapsing	Occurs before a dropdown tree node collapses.
OnCompare	Occurs when two dropdown tree nodes are compared during node sort operations in a dropdown tree view.
OnCurChange	Occurs on text editing. Inherited from TdxBarWindowItem.
OnDestroy	This event occurs before the bar item is destroyed. Inherited from TdxBarItem.
OnDropDown	Occurs when a dropdown window is to be displayed. Inherited from TCustomdxBarCombo.
OnEnter	Occurs when an item control, corresponding to an item, receives focus. Inherited from TdxBarWindowItem.
OnExit	Occurs when an item control, corresponding to an item, loses focus. Inherited from TdxBarWindowItem.
OnExpanded	Occurs after a dropdown tree node has been expanded.
OnExpanding	Occurs before a dropdown tree node has been expanded.
OnGetDropDownWindow	Allows you to create custom drop-down windows. Inherited from TCustomdxBarCombo.
OnGetImageIndex	Occurs when a tree view searches the node ImageIndex.
OnGetScreenTip	Inherited from TdxBarItem.
OnGetSelectedIndex	Occurs when a tree view searches the node SelectedIndex.
OnKeyDown	Occurs when a user presses a key in a linked item control. Inherited from TdxBarWindowItem.
OnKeyPress	Occurs when users press a single character key. Inherited from TdxBarWindowItem.
OnKeyUp	Occurs when users release a key once pressed. Inherited from TdxBarWindowItem.
OnTreeViewChange	Occurs when tree node selections change.