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I found this code:
this.Invoke(new EventHandler(EventGetSum)); Is this not the same as writing:
EventGetSum(); What’s the use of this?
If you write
EventGetSum()that immediately calls the EventGetSum method.If you write
new EventHandler(EventGetSum)that creates a delegate which will (in turn) call EventGetSum when it’s invoked.The call to
Control.Invokeinvokes the given delegate from the UI thread responsible for the control. This is necessary because you mustn’t access UI elements from arbitrary threads.