,ajax,json,undefined , Ajax with aspx returns Undefined

Ajax with aspx returns Undefined



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

Web method:

    public static string getTest()
        return "testing success";

Ajax script

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


                error: function (data) {


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

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


            error: function (data) {


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