public void Add ()
		{
			var project = (DotNetProject) CurrentNode.GetParentDataItem (typeof(DotNetProject), true);
			
			var dlg = new SelectFileDialog (GettextCatalog.GetString ("Select Native Library"), Gtk.FileChooserAction.Open);
			dlg.SelectMultiple = true;
			dlg.AddAllFilesFilter ();
			//FIXME: add more filters, amke correct for platform
			dlg.AddFilter (GettextCatalog.GetString ("Static Library"), ".a");
			
			if (!dlg.Run ())
				return;
			
			foreach (var file in dlg.SelectedFiles) {
				var item = new NativeReference (file);
				project.Items.Add (item);
			}
			
			IdeApp.ProjectOperations.Save (project);
		}
		public NativeReferenceDescriptor (NativeReference nr)
		{
			this.nr = nr;
		}