gtk-sharp2.12.0.0Gtk# is thread aware, but not thread safe; See the Gtk# Thread Programming for details.The sizing method the column uses to determine its width.Please note that Autosize is inefficient for large views and can make columns appear choppy.System.EnumGLib.GType(typeof(Gtk.TreeViewColumnSizingGType))FieldGtk.TreeViewColumnSizingColumns only get bigger in reaction to changes in the model.FieldGtk.TreeViewColumnSizingColumns resize to be the optimal size every time the model changes.FieldGtk.TreeViewColumnSizingColumns are a fixed numbers of pixels wide.