public void ProcessRequest (HttpContext context) {
        new InMemoryPdfReport().CreatePdfReport();
    }

 $(function() {
            $("#Button3").click(function () {
                //var url = "Default.aspx";
                //$(location).attr('href', url);
                $.ajax({
                    url: 'Handler.ashx',
                    contentType: "application/json; charset=utf-8",
                   dataType: "json",
                    success: function (data) {
                       
                    }
                });
            });
        });