Occurs when an item, cell or part is double-clicked.
Class: SftTree
Namespace: Softelvdm.SftTreeNET
Assembly: Softelvdm.SftTreeNET
public event ItemDoubleClickEventHandler ItemDoubleClick;
Public Event ItemDoubleClick As ItemDoubleClickEventHandler
Occurs when an item, cell or part is double-clicked.
Please note that the ItemDoubleClick event reflects mouse button events. The SelectionChange event should be used when selection changes need to be tracked, as these can also occur though keyboard input, which is not reflected by the ItemClick event.
The ItemDoubleClick event supplies all the necessary information to the application, so appropriate action can be taken. The application can start cell editing, expand or collapse an item or display application specific information based on the event and the area clicked.
The ItemDoubleClick event can be used to respond to a mouse button that is pressed twice within a short time. An ItemDoubleClick event is always preceded by an ItemClick event. If the pause between mouse click events is sufficiently long, the ItemClickAgain event may be generated instead of the ItemDoubleClick event.
If the ItemDoubleClick event is used to display a context sensitive menu (popup menu), the SoftelvdmUserControl.CancelMode method must be used before displaying the context menu.
sftTree1.Headers.Rows = 0; sftTree1.Footers.Rows = 0; sftTree1.Dimensions.LevelIndent = 5; // indent just a few pixels for level 1 items sftTree1.TreeLineStyle = TreeLineStyleEnum.None; sftTree1.ShowExpandCollapseButtons = ShowExpandCollapseButtonsEnum.None; sftTree1.RowHeaders.Width = 0; sftTree1.ShowFocusRectangle = false; sftTree1.ItemClick += sftTree1_ItemClick; sftTree1.ItemDoubleClick += sftTree1_ItemDoubleClick; sftTree1.ShowToolTip += new SftTree.ShowToolTipEventHandler(sftTree1_ShowToolTip); sftTree1.ToolTip.ShowAlways = true; sftTree1.ToolTip.Style = ToolTipAppearanceEnum.Balloon; ItemClass cat; cat = AddCategory("Category 1"); AddItem(cat, img, "Item 1");
End Sub Private Sub sftTree1_ItemClick(ByVal sender As Object, ByVal e As Softelvdm.SftTreeNET.ItemClickEventArgs) Handles sftTree1.ItemClick If e.MouseEv.Button = Windows.Forms.MouseButtons.Left And e.Area = ItemClickAreaEnum.CellSel Then ClickCategory(e.Item) End If End Sub Private Sub sftTree1_ItemDoubleClick(ByVal sender As Object, ByVal e As Softelvdm.SftTreeNET.ItemClickEventArgs) Handles sftTree1.ItemDoubleClick If e.MouseEv.Button = Windows.Forms.MouseButtons.Left And e.Area = ItemClickAreaEnum.CellSel Then ClickCategory(e.Item) End If End Sub Private Sub sftTree1_ShowToolTip(ByVal sender As Object, ByVal e As Softelvdm.SftTreeNET.ToolTipEventArgs) Handles sftTree1.ShowToolTip Dim item As ItemClass = e.Cell.OwningItem
See Also SftTree Class | Classes | SftTree/NET 2.0