CheckBox循环删除代码

 for (int i = 0; i < this.GridMessage.Rows.Count; i++)
            {
                CheckBox chk = (CheckBox)GridMessage.Rows[i].FindControl("CheckAll");
                if (chk.Checked)
                {
                    string id = this.GridMessage.DataKeys[i].Value.ToString();
                    DeleteReceiveMessageByid(new Guid(id));
                }
            }
Grid_NeedDataSource(0);