UpDown. On Value Changed(EventArgs) Method
Raises the ValueChanged event.
protected: virtual void OnValueChanged(EventArgs ^ e);
protected virtual void OnValueChanged (EventArgs e);
abstract member OnValueChanged : EventArgs -> unit override this.OnValueChanged : EventArgs -> unit
Protected Overridable Sub OnValueChanged (e As EventArgs)
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnValueChanged 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.