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Editorial Team
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Asked: 2026-06-10T22:53:05+00:00

I try to use ajax call in my aspx page. Here is my script:

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I try to use ajax call in my aspx page. Here is my script:

<head runat="server">
<title></title>
<script type="text/javascript" src="jquery/ui/jquery-ui-1.8.23.custom.js"></script>

<script type="text/javascript" language="javascript">

    $(document).ready(function () {
        $.ajax({
            type: "POST",
            url: "WebForm1.aspx/List",
            data: '{}',
            contentType: "application/json; charset=utf-8",
            dataType: "json",
            success: function () {
                alert('asd');
            }
        });

    });

</script>
</head>

Here is my server side code:

 [WebMethod]
 public static string[] List()
 {
      ...
 }

I put a break point List’s first row but nothing happen. Do you have any suggestion, where I make a mistake?

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1 Answer

  1. Editorial Team

    The parameter you’re specifying is json; but where’s the json data?? data: '{}', is an object. Also, I’d check the url parameter. Presumably, you’d need to write your call like this:

    var AjaxData = '{"ParameterName":""}';

 $.ajax({
            type: "POST",
            url: "../WebForm1.aspx/GetList",
            data: AjaxData ,
            contentType: "application/json; charset=utf-8",
            dataType: "json",....

    And then on the server side, you should therefore specify that you’re receiving a string, since that’s the format of json data. I would also recommend changing the name of the WebMethod because List can be confusing. And finally, you’re returning json, therefore you’re returning a string and not an array. Server method like this:

     [WebMethod]
 public string GetList(string ParameterName)
 {
      ...
 }
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