docs: function (propertyName, newValue, oldValue) {
              if (propertyName == "selectedTab") {
                  this._context.$refresh({
                      section : this._getSectionId()
                  });
              } else if (propertyName === 'labelId') {
                  this._reactToLabelIdChange(newValue);
              } else {
                  this.$Container._onBoundPropertyChange.call(this, propertyName, newValue, oldValue);
              }
          }