'Declaration Public Event DropDownOpening As EventHandler(Of TabControlDropDownOpeningEventArgs)
public event EventHandler<TabControlDropDownOpeningEventArgs> DropDownOpening
The event handler receives an argument of type TabControlDropDownOpeningEventArgs containing data related to this event. The following TabControlDropDownOpeningEventArgs properties provide information specific to this event.
| Property | Description |
|---|---|
| Handled (Inherited from System.Windows.RoutedEventArgs) | Gets or sets a value that indicates the present state of the event handling for a routed event as it travels the route. |
| OriginalSource (Inherited from System.Windows.RoutedEventArgs) | Gets the original reporting source as determined by pure hit testing, before any possible System.Windows.RoutedEventArgs.Source adjustment by a parent class. |
| RoutedEvent (Inherited from System.Windows.RoutedEventArgs) | Gets or sets the System.Windows.RoutedEventArgs.RoutedEvent associated with this System.Windows.RoutedEventArgs instance. |
| Source (Inherited from System.Windows.RoutedEventArgs) | Gets or sets a reference to the object that raised the event. |
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2