JQuery 获取json数据[$.getJSON方法]

前台:

function SelectProject() {
            var a = new Array;
            var r = window.showModalDialog('SelProject.aspx', a, "dialogWidth=1000px; dialogHeight=600px; resizable: yes");
            if (typeof (r) != 'undefined') {
                var arr = r.split(";");
                $("#hidProjectInnerID").val(arr[0]);
                $("#txtProjectNo").val(arr[1]);
                $.getJSON("../Handler/GetProjectInfor.ashx", { key: "PaymentStatement", InnerID: $("#hidProjectInnerID").val() },
                        function (json) {
                            $("#labFinalCustomer").text(json.finalclient);
                            $("#labOrderNo").text(json.orderno);
                            var strDeviceTr = "";
                            $.each(json.workinghours, function (i, item) {
                                strDeviceTr += " " + item.description + " ";
                                strDeviceTr += "   ";
                                strDeviceTr += "  " + item.hoursdays + "";
                                strDeviceTr += "  0.8";
                                strDeviceTr += " " + item.workinghour + " ";
                                strDeviceTr += "  0.8";
                                strDeviceTr += " " + item.workinghour + "";
                                strDeviceTr += "  ";
                                strDeviceTr += "";
                            });
                            $("#infor").append(strDeviceTr);
                        });
            }
        }

ashx:

string innerid = CommonClass.Request.GetRequest("InnerID", "");
            string key = CommonClass.Request.GetRequest("key", "");
            string result = "";
            if (key == "StockOutApp" && innerid != "")
            {
                result = StockOutApp(innerid);
                context.Response.Write(result);
            }
            else if (key == "PaymentStatement" && innerid != "")
            {
                result = PaymentStatement(innerid);
                context.Response.Write(result);
            }
#region 结算单信息

        public string PaymentStatement(string _innerid)
        {
            try
            {
                string sql = @"select InnerID,pFinalClient,pOrderNo from se_ProjectMain where InnerID='" + _innerid + "'";
                DataTable dt = SqlShift.GetDataTable(sql);
                if (!CommonClass.DTRow.CheckDtIsEmpty(dt))
                {
                    StringBuilder json = new StringBuilder();
                     json.Append("\"innerid\":\""+dt.Rows[0]["InnerID"].ToString()+"\"");
                     json.Append(",\"finalclient\":\"" + dt.Rows[0]["pFinalClient"].ToString() + "\"");
                     json.Append(",\"orderno\":\"" + dt.Rows[0]["pOrderNo"].ToString() + "\"");
                    json.Append(",\"workinghours\":" + GetWorkingHours(_innerid));
                    return "{" + json.ToString().Trim(',') + "}";
                }
                else
                {
                    return string.Empty;
                }
            }
            catch (Exception ex)
            {
                AppLog.Write("项目获取异常！[异常信息：" + ex.Message + "]", AppLog.LogMessageType.Info);
                return string.Empty;
            }
        }
        public string GetWorkingHours(string _innerid)
        {
            try
            {
                string sql = @"select InnerID, wDescription,wWorkingHour,wHours_Days from se_ProjectWorkingHour where wProjectID='" + _innerid + "'";
                DataTable dt = SqlShift.GetDataTable(sql);
                if (!CommonClass.DTRow.CheckDtIsEmpty(dt))
                {
                    StringBuilder json = new StringBuilder();
                    for (int i = 0; i < dt.Rows.Count; i++)
                    {
                        json.Append("{");
                        json.Append("\"innerid\":\"" + dt.Rows[0]["InnerID"].ToString() + "\"");
                        json.Append(",\"description\":\"" + dt.Rows[0]["wDescription"].ToString() + "\"");
                        json.Append(",\"workinghour\":\"" + dt.Rows[0]["wWorkingHour"].ToString() + "\"");
                        json.Append(",\"hoursdays\":\"" + dt.Rows[0]["wHours_Days"].ToString() + "\"");
                        json.Append("},");
                    }

                    return "[" + json.ToString().Trim(',') + "]";
                }
                else
                {
                    return string.Empty;
                }
            }
            catch (Exception ex)
            {
                AppLog.Write("项目获取异常！[异常信息：" + ex.Message + "]", AppLog.LogMessageType.Info);
                return string.Empty;
            }
        }

        #endregion