The event arguments used by ComboBox's DropDownOpened event.

Namespace: Autodesk.Revit.UI.Events
Assembly: RevitAPIUI (in RevitAPIUI.dll) Version: 24.0.0.0 (24.0.0.0)

Syntax

C#
`public class ComboBoxDropDownOpenedEventArgs : RibbonItemEventArgs`

Visual Basic
`Public Class ComboBoxDropDownOpenedEventArgs _ Inherits RibbonItemEventArgs`

Visual C++
`public ref class ComboBoxDropDownOpenedEventArgs : public RibbonItemEventArgs`

Inheritance Hierarchy

SystemObject
  SystemEventArgs
    Autodesk.Revit.UI.EventsRibbonItemEventArgs
      Autodesk.Revit.UI.EventsComboBoxDropDownOpenedEventArgs