private void SaveSuJbItemPoint()
    {
        #region 控件取值
        string sgbaseinfodianid = Request["sgbaseinfodianid"];
        string pointx           = Request["pointx"];
        string pointy           = Request["pointy"];
        #endregion

        shigujibeninfo item    = null;
        shigujibeninfo oldItem = null;
        DateTime       dtNow   = DateTime.Now;
        if (sgbaseinfodianid.Length > 0)
        {
            item = SgJbBll.Get(Convert.ToInt32(sgbaseinfodianid));
        }
        if (item != null)
        {
            oldItem = SgJbBll.Clone(item);

            #region 修改
            item.JB_ZB_X       = Convert.ToDecimal(pointx);
            item.JB_ZB_Y       = Convert.ToDecimal(pointy);
            item.JB_UpdateTime = dtNow;

            #endregion

            LogType = SysLogType.修改.ToString();
        }

        item = SgJbBll.Save(item);

        LogDesc = string.Format("事故基本信息 {0}", CompareEntityProperties(oldItem, item, true));
        WriteSystemLog();

        DataContractJsonSerializer json = new DataContractJsonSerializer(item.GetType());
        json.WriteObject(Response.OutputStream, item);
        Response.End();
    }