The following events does not fire:
radMenuComboItem1.DropDownClosing += new RadPopupClosingEventHandler(radMenuComboItem1_DropDownClosing);
radMenuComboItem1.DropDownClosed += new RadPopupClosedEventHandler(radMenuComboItem1_DropDownClosed);
The ComboBoxItem has been replaced with a RadDropDownList. The following events are fired as expected:
this.radSplitButton1.DropDownButtonElement.DropDownClosing += new RadPopupClosingEventHandler(DropDownButtonElement_DropDownClosing);
this.radSplitButton1.DropDownButtonElement.DropDownClosed += new EventHandler(DropDownButtonElement_DropDownClosed);