void ShowPopupMenu(Gdk.EventButton evnt)
{
var menu = new ContextMenu();
columnsActions = new Dictionary <ContextMenuItem, int> ();
var copy = new ContextMenuItem(GettextCatalog.GetString("Copy Task"));
copy.Clicked += OnGenTaskCopied;
menu.Add(copy);
var jump = new ContextMenuItem(GettextCatalog.GetString("_Go to Task"));
jump.Clicked += OnGenTaskJumpto;
menu.Add(jump);
var delete = new ContextMenuItem(GettextCatalog.GetString("_Delete Task"));
delete.Clicked += OnGenTaskDelete;
menu.Add(delete);
var columns = new ContextMenuItem(GettextCatalog.GetString("Columns"));
var columnsMenu = new ColumnSelectorMenu(view, restoreID);
columns.SubMenu = columnsMenu;
menu.Add(columns);
copy.Sensitive = jump.Sensitive = delete.Sensitive =
view.Selection != null &&
view.Selection.CountSelectedRows() > 0 &&
view.IsAColumnVisible();
menu.Show(view, evnt);
}
