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OnKeyDown Method, SftTree Class |
Raises the KeyDown event.
Syntax SftTree Class (Softelvdm.SftTreeNET)
VB |
Protected Overrides Sub OnKeyDown( ByVal e As KeyEventArgs ) |
C# |
protected override void OnKeyDown( KeyEventArgs e ); |
C++ |
protected: virtual void OnKeyDown( KeyEventArgs^ e ); |
e
The event data.
Comments
The OnKeyDown method raises the KeyDown event.
Raising an event invokes the event handler through a delegate.
The OnKeyDown 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.
When overriding OnKeyDown in a derived class, make sure to call the base class's OnKeyDown method so that registered delegates receive the event.