Raises the DropDownOpened event.
Assembly: System.Windows (in System.Windows.dll)
'Declaration Protected Overridable Sub OnDropDownOpened ( _ e As EventArgs _ )
protected virtual void OnDropDownOpened( EventArgs e )
The event data.
The OnDropDownOpened method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors
When overriding OnDropDownOpened in a derived class, make sure to call the base class’s OnDropDownOpened method so that registered delegates receive the event.
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.