This property allows you to set or retrieve the width of the four borders of the Tree-View control. The property is a list of four values that specify the width in pixels of the top, left, bottom and right border respectively. The border width is applicable only to controls with the Boxed style.

Setting the property to -1 resets the borders.

Passing less than four values assumes that the remaining values are 0.

This property overrides the layout provided by the iscobol.gui.native_style (boolean) * setting for the control.

 

Example - Define a tree-view control with a huge bottom border