$(function() {
            $("#Btn_save").click(function() {
                $.ajax({
                    type: "post",
                    url: "OnlineReport_Updown.aspx/save",
                    data: "{}",
                    beforeSend: function() {
                        $("#ds").html("<img src='../../Images/ajax-loader.gif'/>");
                        $("#ds").show();
                    },
                    success: function(msg) {
                        $("#txt").val = msg;
                    }

                });

            });
        });

[WebMethod]
    public static string save()
    {
        string message = "";
        int su = 0;
        int erorri = 0;
        for (int i = 0; i < GridView1.Rows.Count; i++)
        {

            try
            {
                Convert.ToDateTime(GridView1.Rows[i].Cells[2].Text.ToString());
            }
            catch (Exception ex)
            {
                message = "第三列" + GridView1.HeaderRow.Cells[2].Text + "导入格式有误，请填写正确的时间格式:<yyyy-MM-dd><br>错误明细：" + ex.Message;
                return;
            }

            string InsertSQL = " insert into Is_Online_Report(CARRIER ,TRUCK ,PLAN_DATE,REMARK,CREATE_BY,CEATE_DATE) values('" + GridView1.Rows[i].Cells[0].Text.Replace("&nbsp;", "").Trim() + "','" + GridView1.Rows[i].Cells[1].Text.Replace("&nbsp;", "").Trim() + "',to_date('" + GridView1.Rows[i].Cells[2].Text.Replace("&nbsp;", "").Trim() + "','yyyy-MM-dd HH24:mi:ss'),'" + GridView1.Rows[i].Cells[3].Text.Replace("&nbsp;", "").Trim() + "','" + Session["UserName"].ToString() + "',to_date('" + DateTime.Now + "','yyyy-MM-dd HH24:mi:ss') )";
            if (DAL.DBAccess.ExecuteNonQuery_VT(InsertSQL))
            {
                su += 1;
            }
            else
            {
                erorri += 1;
            }

        }
        if (erorri > 0)
        {
            message = "保存出错!共" + erorri.ToString() + "行";
            return;
        }
        message = "成功保存" + su + "条记录!";
        GridView1.DataSource = null;
        GridView1.DataBind();


    }