警报消息在Ajax Web方法中无法正常工作

Question

Always getting the 'save error' message when I call the Ajax web method.But I can save the data to database.I couldn't find any errors.How can I get alert 'Saved' . my web method is

$.ajax({
            type: "POST",
            dataType: "json",
            contentType: "application/json",
            url: "paygrade.aspx/SavePayGrade",
            data: JSON.stringify({ value: rec, arr: arr }),
            success: function (msg) {
                console.log(msg.d);
                alert(msg.d);

            },
            error: function (msg) {
                alert("Save error");
            }
        });



 [WebMethod]
  public static string SavePayGrade(string value, params string[] arr)
    {
        string res = "";
        using (FlairEntities context = new FlairEntities())
        {

            tblPayGrade obj = new tblPayGrade();

                obj.salaryGrade = arr[0];
                obj.salary = arr[1];
                obj.note = arr[2];

                context.tblPayGrades.Add(obj);
                context.SaveChanges();
                res = "Saved";

        }

        return res;
    }

Answer 1

try following

console.log(msg);

alert(msg);

As you are sending response in string( return res; ), you cant use msg.d You need to use only msg .