title: Get null data when pass parameter in query string in $.ajax
body: <p>I use $.ajax for send data in to Sql,
  when I pass parameter in query string, I get null in data value,</p>
  
  <pre><code>function refreshTime(options) {
          $.ajaxService({
              url: 'http://localhost:1549/Store/Pages/services.aspx?servicename=change,
              data: { oldpassword: $("#oldpassword").val(), newpassword: $("#newpassword").val() },
              onStartService: function () { $(".failed-message,.success-message").hide(); $("#submitchangepassword,#oldpassword,#newpassword,#confirmpassword").attr('disabled', 'disabled'); },
              onEndService: function () { $("#submitchangepassword,#oldpassword,#newpassword,#confirmpassword").removeAttr('disabled').not("#submitchangepassword").val(""); },
              onResponse: function (response) {
                  if (response.result == '1') {
                      $.pushMessage({ message: 'success', messageClass: 'success-message', delay: 6000 });
                  }
                  else {
                      $.pushMessage({ message:'error ', messageClass: 'failed-message', delay: 8000 });
                  }
              }
          });
      }
  </code></pre>
  
  <p><em>I get null data in services page,</em></p>
  
  <p>but when I don't pass parameter I get correct data value,</p>
  
  <pre><code>function refreshTime(options) {
          $.ajaxService({
              url: 'http://localhost:1549/Store/Pages/services.aspx,
              data: { oldpassword: $("#oldpassword").val(), newpassword: $("#newpassword").val() },
              onStartService: function () { $(".failed-message,.success-message").hide(); $("#submitchangepassword,#oldpassword,#newpassword,#confirmpassword").attr('disabled', 'disabled'); },
              onEndService: function () { $("#submitchangepassword,#oldpassword,#newpassword,#confirmpassword").removeAttr('disabled').not("#submitchangepassword").val(""); },
              onResponse: function (response) {
                  if (response.result == '1') {
                      $.pushMessage({ message: 'success', messageClass: 'success-message', delay: 6000 });
                  }
                  else {
                      $.pushMessage({ message:'error ', messageClass: 'failed-message', delay: 8000 });
                  }
              }
          });
      }
  </code></pre>
  
  <p>In this case, I dont get null data,</p>
  
  <p><strong>What is the reason?</strong></p>