private void edit_btn_Click(object sender, RoutedEventArgs e) { ListModel edit_list = all_lists_grid.SelectedItem as ListModel; EditListView edit_list_view = new EditListView(); if (edit_list != null) { if (edit_list_view.ShowDialog() == true) { if (!string.IsNullOrWhiteSpace(edit_list_view.ResponseText)) { edit_list.List_name = edit_list_view.ResponseText; ListController controller = new ListController(); controller.EditList(edit_list); } } } }