//遍历Grid中的子项

                     foreach (var c in this.grid_box.Children)

                     {

                         Border bd = c as Border;//列边框

                         if (bd.Child.GetType().Name.Equals("CheckBox"))

                         {

                             CheckBox cb_box = bd.Child as CheckBox;

                             cb_box.IsChecked = false;//取消选中复选框

                         }

                     }