>>>Hi everybody,
>>>
>>>I made a test form and put a textbox and checkbox on it with this code in When event
>>>
>>>

>>>IF MESSAGEBOX('ok to click?',4,'test')=7
>>>  RETURN .f.
>>> endif

>>>
>>>and with messagebox ('Click') in click event.
>>>
>>>Now, the click will never happen even if I answer Yes on the question.
>>
>>
>>That is because you didn't have CLICK :-)
>>You have only MouseDown event and the MessageBox receives the MouseUp event. So no Click happened.
>>That is why I really try to avoid MessageBxo in WHEN or VALID events.
>
>But how should I solve my problem? I want to be able to Ask user if he wants to Save (Yes/No,Cancel). If he cancel, I want to keep editing.
>
>Are you saying there is no solution here?

*** GotFocus Event
this.Tag = IIF(this.Value,"1","0")

*** Lost Focus
IF NOT this.Tag == IIF(this.Value,"1","0") ;
   AND MESSAGEBOX('ok to click?',4,'test') = 7
       this.Value = (this.Tag == "1")
ENDIF