TCustomTreeView.ShowLines property
Enables or disables the horizontal and vertical lines which join nodes in the tree hierarchy.
Declaration
property ShowLines: Boolean read GetShowLines write SetShowLines default True;Description
ShowLines is a
Boolean property used to enable or
disable drawing of lines which connect the nodes on the tree view control.
When enabled, a line is drawn to connect a tree node to its parent, sibling
and child nodes. Values in TreeLineColor and TreeLinePenStyle are used to draw
the connector lines in the DoPaintNode method.
ShowLines is a convenience property; its value is read from and written to the Options for the control. ShowLines contains True when the value tvoShowLines has been included in Options. Changing the value for the property causes Options to be updated to include or exclude tvoShowLines as needed for the Boolean value. The control is redrawn when Options is modified.
The default value for the ShowLines property is True.
See also
An experiment, built from development snapshots. Not the official Free Pascal or Lazarus documentation.