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Editorial Team
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Asked: 2026-05-26T07:06:19+00:00

I am getting NetworkError: 500 Internal Server Error – http://localhost:5963/default.aspx/Call when am calling this

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I am getting “NetworkError: 500 Internal Server Error – http://localhost:5963/default.aspx/Call” when am calling this server side function using jquery

<html>
    <head>
        <script src="scripts/jquery-1.2.6-vsdoc.js" type="text/javascript"></script>
        <script type="text/javascript">
            $(document).ready(function () {
                $("#btn").click(function () {
                    $.ajax({
                        type: "POST",`enter code here`
                        url: "default.aspx/Call",
                        data: "{}",
                        contentType: "application/json; charset=utf-8",
                        async: true,
                        dataType: "json",
                        success: function (msg) {
                            alert("sdsd");
                        }
                    });
                });
            });

        </script>
    </head>
    <body>
        <form id="form1" runat="server">
            <asp:RadioButton  runat="server" ID="btn" Text="A" />
        </form>
    </body>
</html>

[System.Web.Services.WebMethod]
[System.Web.Script.Services.ScriptMethod]
public static void Call(string value)
{
    var x = value;
}
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1 Answer

  1. Editorial Team

    First of all this script won’t return anything because you’re using the wrong id of a server control. When a server control is rendered, it’s id changes.
    Try using :

    $("#<%=btn.ClientID %>")

    You have another problem. You’re calling an overloaded web method, so you need to pass some data :

    data: "{'value': 'somevalue'}",

    Hope this will help.

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