title: Autocomplete show entire list on down arrow key
body: <p>I have applied autocomplete plugin on a textbox like this.</p>
  
  <pre><code>var model = [];
  for (var i = 0; i &lt; data.length; ++i) {
                  model.push({ Label: data[i].ModelName, Value: data[i].CodeModel });
  }
   var modelData = model;
   $('#tbmodele').autocomplete({
                  source: function (request, response) {
                      response($.map(modelData, function (value) {
                          if (value.Label.toLowerCase().startsWith(request.term.toLowerCase())) {
                              return {
                                  label: value.Label,
                                  vvalue: value.Value
                              };
                          }
                      }));
                  },              
                  select: function (e, i) {
                      populateOtherFields(i.item.label);
                      return false;
                  },
                  open: function () {
                      $scope.isModelDropdownOpen = true;
                  },              
                  minLength: 0,
                  scroll: true
   });
  </code></pre>
  
  <p>Now I want to open the autocomplete list on pressing down arrow key of that text field.</p>
  
  <p>Can anyone please suggest how I can do that?</p>