Width of the pane that displays the Tree View in relation to the List View, expressed as a percentage of the total width.
|Physical Property Name
This property is used only when both the Tree View and List View properties are check boxes are selected. It determines the initial position of the split bar by percentage of the widget's total width. The default is 33% of the total width. Use this property to increase or decrease the percentage of the Tree View, or enter a value between 1 and 100.