On Mouse Enter(EventArgs) Method
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Raises the MouseEnter event.
protected: virtual void OnMouseEnter(EventArgs ^ e);
protected virtual void OnMouseEnter (EventArgs e);
abstract member OnMouseEnter : EventArgs -> unit override this.OnMouseEnter : EventArgs -> unit
Protected Overridable Sub OnMouseEnter (e As EventArgs)
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnMouseEnter 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 OnMouseEnter(EventArgs) in a derived class, be sure to call the base class's OnMouseEnter(EventArgs) method so that registered delegates receive the event.