#593 – AddHandler Method Can Add Handler for Any Event

If you’re adding an event handler from code, rather than specifying the handler in XAML, you can just use the += notation for an event that is defined for the control in question.  For example, the Button control defines a Click control, so you can do the following:

myButton.Click += new RoutedEventHandler(Button_Click);

But let’s say that you want to add a handler for the Click event to a StackPanel control, which does not define the Click event, and you want to do it from code.  You can then use the AddHandler syntax:

myStackPanel.AddHandler(ButtonBase.ClickEvent, (RoutedEventHandler)HandleTheClick);

Read more: 2,000 Things You Should Know About WPF

QR: 

Posted via email from Jasper-net