TreeViewSelectionEvent Class |  |
Provide information about a tree view selection event, which is generated when the current selection in a tree view control has changed or is about to change.
Inheritance HierarchyNamespace: VO
Assembly: VOGUIClasses (in VOGUIClasses.dll) Version: 2.21
SyntaxThe TreeViewSelectionEvent type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | TreeViewSelectionEvent | Initializes a new instance of the TreeViewSelectionEvent class |
Properties| Name | Description | |
|---|---|---|
 | Control |
The Control object that generated this event.
(Inherited from ControlNotifyEvent.) |
| ControlID |
A number between 1 and 8000 representing the unique ID of the control that generated this control event.
(Inherited from ControlEvent.) |
| Description |
A string representing the description of the control that generated this control event.
(Inherited from ControlEvent.) |
| Handle |
The pointer to the window where the event occurred
(Inherited from Event.) |
| HelpContext |
A string representing the help context ID of the control that generated this control event.
(Inherited from ControlEvent.) |
| HyperLabel |
The hyperlabel connected to the control event.
(Inherited from ControlEvent.) |
| KeyBoardAction |
A logical value indicating whether the selection change was caused by a key press.
|
| Message |
A dword representing the Windows API message associated with the given event.
(Inherited from Event.) |
| MouseAction |
A logical value indicating whether the selection change was caused by a mouse click.
|
| Name |
A string representing the name of the control that generated the event.
(Inherited from ControlEvent.) |
| NameSym |
A symbol representing the name of the control that generated the event.
(Inherited from ControlEvent.) |
| NewTreeViewItem |
The TreeViewItem object that is selected as a result of this event.
|
| NotifyCode |
The notification code for this event as defined by the Windows API.
(Inherited from ControlNotifyEvent.) |
| OldTreeViewItem |
The TreeViewItem object that was selected before this event occurred.
|
| SelectionChanged |
A logical value indicating whether the selection has changed.
|
| SelectionChanging |
A logical value indicating whether the selection is about to change.
|
| UnknownAction |
A logical value indicating whether the selection change was caused by an unknown source.
|
| Window |
An object indicating the window or control in which the event occurred. This is helpful, for example, for distinguishing between similar menu events coming from the same context menu attached to different controls.
(Inherited from Event.) |
Fields| Name | Description | |
|---|---|---|
 | hWnd | (Inherited from Event.) |
| lParam | (Inherited from Event.) |
| oWindow | (Inherited from Event.) |
| uMsg | (Inherited from Event.) |
| wParam | (Inherited from Event.) |
Remarks
The tree view control generates this event whenever the current selection changes or is about to change. Information packaged in the event includes what caused the selection to change, as well as which item gained selection focus and which item lost it.
See Also