Ajax with asp.net aspx returns Undefined

Question

I'm facing the following issue: Whenever I click on the button, the alert shows undefined.

Web method:

    [WebMethod]
    public static string getTest()
    {
        return "testing success";
    }

Ajax script

    <script type="text/javascript">
        function getTest() {
            $.ajax({
                type: "POST",
                url: "main.aspx/getTest",
                data: "{}",
                datatype: "json",
                contenttype: "/application/json; charset=utf-8",
                success: function (msg) {

                    alert(msg.d);

                },
                error: function (data) {
                }
            });
        }
    </script>

contenttype: "/application/json; charset=utf-8" remove / from start of application. — Mairaj Ahmad, May 04 '15 at 12:00

score 1 · Accepted Answer · answered May 04 '15 at 12:08

datatype should be dataType and contenttype should be contentType. Also remove / from start of "/application/json; charset=utf-8"

$.ajax({
            type: "POST",
            url: "main.aspx/getTest",
            data: "{}",
            dataType: "json",
            contentType: "application/json; charset=utf-8",
            success: function (msg) {

                alert(msg.d);

            },
            error: function (data) {
            }
        });

Man u saved my day... been spending hours on this thanks alot. — Convict Moody, May 04 '15 at 12:13

score 0 · Answer 2 · edited May 23 '17 at 12:14

0

Remove these from your ajax call

datatype: "json",
contenttype: "/application/json; charset=utf-8",

More about these

Differences between contentType and dataType in jQuery ajax function

What is content-type and datatype in an AJAX request?

You can find more details in the jQuery Ajax documentation

edited May 23 '17 at 12:14

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answered May 04 '15 at 12:00

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I did but am still getting Undefined. – Convict Moody May 04 '15 at 12:06
try alert `alert(msg);` and see what r u getting? – शेखर May 04 '15 at 12:10

Ajax with asp.net aspx returns Undefined

2 Answers2