TrackBar.OnScroll(EventArgs) Method
Definition
Important
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Raises the Scroll event.
protected:
virtual void OnScroll(EventArgs ^ e);protected virtual void OnScroll (EventArgs e);abstract member OnScroll : EventArgs -> unit
override this.OnScroll : EventArgs -> unitProtected Overridable Sub OnScroll (e As EventArgs)Parameters
Remarks
You can use the OnScroll event to update other controls as the position of the scroll box changes.
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnScroll 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 OnScroll(EventArgs) in a derived class, be sure to call the base class' OnScroll(EventArgs) method so that registered delegates receive the event.
