asp.net mvc - JQUERY GET operation not working -

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i'm having trouble following jquery script

$('#extra_data').append('<div id="tabs-' + (tab_length + 1) + '"></div>');     $.get(url, function(data) {     $('#tabs-' + (tab_length + 1)).html(data);      });

my trouble $.get(..) operation doesn't return results - although when using firebug shows ajax call expected.

any clues?

thanks.

controller

<httppost()> _ function getpartialview() actionresult     if (request.isajaxrequest())         return view("pvtest")     else         return view()     end if end function

i've filtered request if ajax. can pass object partial view.

jquery

<script type="text/javascript">     $(document).ready(function() {         $.ajax({             type: 'post',             url: 'home/getpartialview',             data: {},             datatype: 'json',             beforesend: function(xmlhttprequest) {             },             complete: function(xmlhttprequest, textstatus) {                 $('#extra_data').append(xmlhttprequest.responsetext);             }         });     }); </script>

partial view (pvtest.ascx)

<%@ control language="vb" inherits="system.web.mvc.viewusercontrol" %> <div id="01">     hello world </div>

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