[WPF]DataGrid C#添加右键弹出选择菜单

private void dataGrid_MouseRightButtonDown(object sender, MouseButtonEventArgs e)
        {
            ContextMenu context = new ContextMenu();
            MenuItem item = new MenuItem();
            item.Header = "点击删除该行数据";
            item.Click += new RoutedEventHandler(item_Click);
            context.Items.Add(item); 
            context.IsOpen = true;
        }
        void item_Click(object sender, RoutedEventArgs e)
        {
          // do something  
        }