System.Web 1.0.5000.0 2.0.0.0 Gtk# is thread aware, but not thread safe; See the <link location="node:gtk-sharp/programming/threads">Gtk# Thread Programming</link> for details. System.Enum The enumeration represents the selection mode of the control that determines whether a user can select multiple items or just a single item. Specifies the selection mode of the control. Field System.Web.UI.WebControls.ListSelectionMode To be added Multiple item selection mode. 1.0.5000.0 2.0.0.0 Field System.Web.UI.WebControls.ListSelectionMode To be added Single item selection mode. 1.0.5000.0 2.0.0.0