docs: function (newVals) {
              // when clicking on an item in the dropdown list, close the dropdown and save the selected item
              var report = this.controller.checkValue(this.controller.getDataModel().value);
              var arg = {
                  stopValueProp : !this._instantBind
              };
              this._reactToControllerReport(report, arg);
              if (this._instantBind && this._dropdownPopup) {
                  this._dropdownPopup.updatePosition();
              }
          }