What does setting e.Handled = True in KeyUp do?

[**Developer**]

I have a usercontrol that contains the following.

To my surprise the form containing this control get KeyUp events.

Help says that for KeyPress setting e.Handled = True suppresses KeyPress
events but say very little about KeyUp.

What does setting to Handled do?



In the Control I also continue to get KeyPress and KeyUp events.

In them I also have the same code to set e.Handled = True

Thanks



Protected Overrides Sub OnKeyUp(ByVal e As
System.Windows.Forms.KeyEventArgs)

If mReadOnly Then

e.Handled = True

Else

snip...

End If

MyBase.OnKeyUp(e)

End Sub

 

[Rick Mogstad]

you are calling mybase.onkeyup, which will always raise the event. you are
not handling the event, you are simply overriding it.

 

[**Developer**]

What does setting e.Handled = True do?

Thanks

you are calling mybase.onkeyup, which will always raise the event. you
are not handling the event, you are simply overriding it.

 

[Rick Mogstad]

when the event is raised, it will check cause subsequent handlers to not be
called. It needs to be set inside of an event handler though, and you are
not.

 

[**Developer**]

when the event is raised, it will check cause subsequent handlers to not
be called. It needs to be set inside of an event handler though, and you
are not.
Thanks