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Cheers, Randy Al Santino wrote: Hi, It appears displaying a messagebox in a validating event will cancel the subsequent event. Since the code is throwing up a message box, focus is away from Button2 therefore the click is not registered. To Upper = "HELLO" Then Msg Box("Invalid Value in textbox") e. To Upper = "HELLO" Then Msg Box("Invalid Value in textbox") e.In the program below, button 2's click event doesn't fire if you open a dialog box in button 1's validating event. Thanks Al Imports system Imports system.windows.forms ' Create a form, add two buttons and event handlers. Validating, Address Of Btn Validating btn = New Button btn. Think about this: Suppose you had a textbox and a button on the form and you had the validating event on the textbox. Cancel = True End If End Sub End Class Yes, if you remove the Message Box things work fine. Cancel = True End If End Sub End Class Hello, Al, Chris's idea that the event is being "absorbed" by the Message Box may be on the right track, but I suspect this is not "by design" but is more likely due to lack of design.

Show("Btn Validating event") End Sub Private Sub Btn Click(By Val sender As Object, By Val e As System. Show("Btn Click event") End Sub End Module It appears displaying a messagebox in a validating event will cancel the subsequent event.After you close the message box, button 2 will get the focus but its click event will not fire. If you run the program, button 1 will start with the focus. Run(frm) End Sub Private Sub Btn Validating(By Val sender As Object, By Val e As System. Net 2003) and can confirm that I see the same (inappropriate) behaviour. I hope someone can provide an explanation and/or workaround. From the code posted I don't see why button2's click event would be triggered at all.I haven't yet found a good generic way to do this (in VB),and so have had to add code to each derived form to find the activecontrol and directly call its validation handler.(I think it should bepossible to locate and call the handler in a generic fashion, and I'mstill hoping to figure out how to do this.)Cheers, Randy Al Santino wrote: Yes, if you remove the Message Box things work fine.I like your idea of using the form closing event but, unfortunately, the form doesn't close each time. Either way, I can't see how to use thisidea to come up with a work-around.

But it sounds as if, rather than using the Message Box as part ofvalidating the contents of a control, you are actually using it tovalidate the closing of the form.

Hi, It appears displaying a messagebox in a validating event will cancel the subsequent event. My understanding is that the second button's event should fire unless you set the cancel arg to true in the validation event handler. Run(frm) End Sub Private Sub Btn Validating(By Val sender As Object, By Val e As System. If you run the program, button 1 will start with the focus.

In the program below, button 2's click event doesn't fire if you open a dialog box in button 1's validating event. Thanks Al Imports system Imports system.windows.forms ' Create a form, add two buttons and event handlers. Validating, Address Of Btn Validating btn = New Button btn. It appears displaying a messagebox in a validating event will cancel thesubsequent event. If you run the program, button 1 will start with the focus. If you click on button 2, the button 1 validating event will fire and the program will display the messagebox.

(I think it should be possible to locate and call the handler in a generic fashion, and I'm still hoping to figure out how to do this.) Cheers, Randy Al Santino wrote: Yes, if you remove the Message Box things work fine.

But I'd like to use this in the case where someone enters fills in some controls on a form and then chooses to close the form.

I can't think of a good solution just now, but I'll let you know if I have any late-night inspirations.