title: Error "validator is undefined" occured when edit drop down list using jEditable
body: <p>I am using jeditable to do inline edit for my table. In my table i can edit text, datepicker and also dropdown.</p>
  
  <p>However, when i edit the dropdown, i will get error in firebug:</p>
  
  <pre><code>validator is undefined
  [Break On This Error] validator.settings[eventType] &amp;&amp; v...ype].call(validator, this[0], event); 
  </code></pre>
  
  <p>Error is occured at either jquery.validate.js or jquery.js</p>
  
  <p>However, I did not call any validate method when I edit my drop down list.</p>
  
  <p>Following is the code to declare jeditable for dropdown:</p>
  
  <pre><code>  // Drop down
      $('.dropdown').editable('@(Url.Action("Edit", "Stock"))',
      {
          data: getFoodTypesList(),
          type: 'select',
          indicator: 'saving...',
          event: 'dblclick',
          //tooltip: 'Double click to edit...',
          style: 'inherit',
          width: '240px',
          submit: '&lt;img src="@Url.Content("~/Content/Add_in_Images/ok.png")" alt="ok"/&gt;',
          cancel: '&lt;img src="@Url.Content("~/Content/Add_in_Images/cancel.png")" alt="cancel"/&gt;',
          // Use callback function to assign display text for the field after edit
          callback: function (value, settings) {
              var temp = getFoodTypeName(value);
              $(this).text(temp);
              $.ajax({
                  async: false,
                  url: '@(Url.Action("GetStockTable", "Stock"))',
                  type: 'GET',
                  success: function (result) {
                      $('#tableplaceholder').html(result);
                      unitDropDown();
                  }
              });
          }
  
      });
  </code></pre>
  
  <p>Error occur everytime i click on the dropdown to select an option. Any idea what is the cause? Or is there anyway I can "by pass" the somehow auto validation for the dropdown?</p>
  
  <p>Please help... thank you very much...</p>
  
  <p>EDIT:</p>
  
  <p>Error shown in IE Developer Tool is different:</p>
  
  <pre><code> 'settings' is null or not an object
  </code></pre>
  
  <p>And it points to this line:</p>
  
  <pre><code> // Datepicker
      $('.storagedatepicker').editable('/Stock/Edit',
      {
          type: 'datepicker',
          indicator: 'saving...',
  </code></pre>
  
  <p>which is the jeditable for datepicker field...
  I cant see why is it related...</p>