Specifies what occurs when the user clicks on the background layer (layer 0). If layer 0 is not selectable. If not included (default) the current layer be set to 0 (though the layer remains unselected). If included the selection does not change.

public bool PreventDeselection { get; set; }

Public Property PreventDeselection As Boolean
	Get
	Set

public:
property bool PreventDeselection {
	bool get ();
	void set (bool value);
}