DevExpress实现GridControl删除所有行的方法

/// <summary>
/// 删除全部行
/// </summary>
/// <param name="gridView">GridView</param>
public static void ClearRows(this GridView gridView)
{
  bool _mutilSelected = gridView.OptionsSelection.MultiSelect;//获取当前是否可以多选
  if (!_mutilSelected)
 gridView.OptionsSelection.MultiSelect = true;
  gridView.SelectAll();
  gridView.DeleteSelectedRows();
  gridView.OptionsSelection.MultiSelect = _mutilSelected;//还原之前是否可以多选状态
}