problem in returning a json response to jquery ajaxupload plugin

I am using jquery ajaxupload plugin to upload files .I have the following js on my default.aspx page

 $(document).ready(function() {
        /* Example 1 */
        var button = $('#button1'), interval;
        new AjaxU开发者_JAVA百科pload(button, {
            action: 'upload.aspx',
            name: 'myfile',
            responseType:'json',
            onSubmit: function(file, ext) {
                // change button text, when user selects file
                button.text('Uploading');
                // If you want to allow uploading only 1 file at time,
                // you can disable upload button
                this.disable();
                // Uploding -> Uploading. -> Uploading...
                interval = window.setInterval(function() {
                    var text = button.text();
                    if (text.length < 13) {
                        button.text(text + '.');
                    } else {
                        button.text('Uploading');
                    }
                }, 200);
            },
            onComplete: function(file, response) {               
                button.text('Upload');
                window.clearInterval(interval);
                // enable upload button
                this.enable();
                // add file to the list
                $('<li></li>').appendTo('#example1 .files').text(file);
            }
        });
    }); /*]]>*/</script>    

the above js will invoke upload.aspx.cs page load.I am expecting a json response from upload.aspx.But I do not understand how do I return a response from page load.I have also tried modifying the 'action' attribute to 'upload.aspx/getdata', where 'getdata' is a method/webmethod,but I still see the page load getting invoked and not the method/webmethod.

Could someone please help me in getting a response(such as upload status(success/fail) in json) and presenting it to the UI?

---

.

Response.ContentType = "application/json";  
Response.Write(@"{""Name1"":""FirstValue"", ""Name2"":""SecondValue""}");

or in your case:

Response.Write(@"{""Status"":""Success""}");

The upload.aspx page itself should be completely empty.