JsからWebMethod呼出

JsからWebMethod呼出

XXX.master
telerik:RadScriptManager ID="RadScriptManager1" runat="server" EnablePageMethods="True"
        ScriptMode="Debug" EnableScriptCombine="False">

XXX.aspx

    <telerik:RadCodeBlock ID="RadCodeBlock" runat="server">
        <script type="text/javascript">

            function nextButtonMouseOver(sender, args) {

                var index = $get("<%= CurrentIndex.ClientID %>").value;
                PageMethods.GetNextOrPrevious(true, index, onSuccess)
            }

        </script>
    </telerik:RadCodeBlock>

XXX.ｃｓ

[WebMethod]
        public static string GetNextOrPrevious(Boolean isNext, int index)
        {
        }