how to get j query auto-complete “tagify” values in c# , asp.net

[dj_d2]

i'm using Tagify, which is basically use jQuery Autocomplete,i wrote following method Ajax method to get source, problem i wrote WebMethod in codebehind C# and sometimes, if the value not matched the webmethod returns nullvalue,references :<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script> <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.14/jquery-ui.min.js"></script> <script src="http://stackoverflow.com/Scripts/jquery.tagify.js" type="text/javascript"></script> <link href="http://stackoverflow.com/Styles/jqueryTagify.css" rel="stylesheet" type="text/css" />Script :<script> var myTextArea = $("#txtbox").tagify(); myTextArea.tagify('inputField').autocomplete({ source: function(request, response) { $.ajax({ type: "POST", url: "Demo.aspx/GetKeyword", data: "{'match': '" + request.term + "'}", dataType: "json", contentType: "application/json", success: function(data) { response($.map(data, function(item) { return { label: item, value: item, } })); } }); }, position: { of: myTextArea.tagify('containerDiv') }, close: function(event, ui) { myTextArea.tagify('add'); }, }); $('form').submit( function() { var tagStr = $("#txtbox").tagify('serialize'); alert( "Got tags: " + tagStr ); return false; }); </script>html is : <input type="text" id="txtbox" /><input class="submit" type="submit" value="http://stackoverflow.com/questions/12769041/Get Values" />so when we clicked on submit button, we get tags value from here var tagStr = $("#txtbox").tagify('serialize');so when i clicked on "getvalues" the result like thismy problem is : how could i get those values in Code Behind C#