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Re: Using LostFocus instead of Valid

Cross-posted to 2 groups.

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Gene Wirchenko expressed precisely :
> Dear Foxers:
>
>      I have used Valid for validation in my app since the beginning. I
> would now like to change it over to using LostFocus since I can not
> SetFocus when there is a Valid being executed.
>

I think this is wrong-headed. It isn't one or the other.

In the old days, we used Valid for *both* validation and navigation 
because it's the only thing we had.

Now they're separate acts that mean different things. Valid determines 
whether or not focus is allowed to leave the current control. Lostfocus 
happens after focus has left the control, implying that validation has 
been satisfied, and allows you to interfere in normal tab order.

If you need your validation to move focus to (for example) the previous 
control, then RETURN -1 in the Valid method, but it's still an act of 
validation.

They're really very different conditions and using one for the other's 
purpose seems like you're swimming against the tide. You wouldn't use 
Click() to handle a Keypress().

Dan

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Thread

Using LostFocus instead of Valid Gene Wirchenko <genew@telus.net> - 2013-01-28 12:28 -0800
  Re: Using LostFocus instead of Valid Bernhard Sander <fuchs@kein.spam> - 2013-01-29 13:59 +0100
    Re: Using LostFocus instead of Valid Gene Wirchenko <genew@telus.net> - 2013-01-29 10:30 -0800
  Re: Using LostFocus instead of Valid Dan Freeman <dan@dfapam.com> - 2013-01-29 10:11 -0800
    Re: Using LostFocus instead of Valid Gene Wirchenko <genew@telus.net> - 2013-01-29 15:07 -0800
      Re: Using LostFocus instead of Valid Dan Freeman <dan@dfapam.com> - 2013-01-29 21:50 -0800
        Re: Using LostFocus instead of Valid Gene Wirchenko <genew@telus.net> - 2013-01-30 12:19 -0800

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