Base. On Mouse Enter(EventArgs) Method
Raises the OnMouseEnter(EventArgs) event.
protected: override void OnMouseEnter(EventArgs ^ eventargs);
protected override void OnMouseEnter (EventArgs eventargs);
override this.OnMouseEnter : EventArgs -> unit
Protected Overrides Sub OnMouseEnter (eventargs 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.
Do not call OnMouseEnter if the button is disabled (this includes call to the base class's OnMouseEnter method when you override OnMouseEnter in a derived class). When disabling the button in an override of OnMouseEnter, call the base class's OnMouseEnter method before disabling the button, or do not call it at all.