w00dy
Let me get this straight. You're saying that the data gets written to disk
in the Valid and that you can't revert it in the lostfocus. Are you saying
that you would allow code to prevent a control from losing focus but the
data was already written to disk. Doesn't sound to kosher to me.
Jerry Cotton, MCP
2nd Marine Aircraft Wing
Management Training and Assistance Team
Cherry Point, NC 28533
(252)466-4854
mailto:cottonjp.ctr At 2mawcp .D.O.T usmc.mil
> -----Original Message-----
> From: Juergen Wondzinski [mailto:woody@prolib.de]
> Sent: Friday, October 31, 2003 9:23 AM
> To: 'ProFox Email List'
> Subject: RE: Restrict Textbox Values?
>
>
> Hi Chuck,
>
> GotFocus/LostFocus is what all the other dumbass Windows Programming
> languages have. But we have more power, more control since we
> have WHEN and
> VALID. Those additional events make the difference between
> General Purpose
> languages and highly specialized langguages, tailored for
> their job: Perfect
> data-management. And perfect data starts with clean data,
> with validated
> data.
>
> Maybe it's clearer this way:
>
> In GotFocus, you just entered the Control, in Lostfocus, you
> are already out
> of the control. WHEN takes precedence before you enter, VALID is fired
> BEFORE you are ALLOWED to leave.
>
> Another difference between VALID and LOSTFOCUS is very
> important: As soon as
> you leave the VALID, the entered data is accepted as to be
> validated and ok,
> thus the Fieldstate is set (see GETFLDSTATE() for more info)
> which in turn
> means, that the entered data gets written to the table. You
> can't revert
> that in Lostfocus!
>
> Another analogy would be, that you compare your object with a
> supermarket.
> The VALID is the Cashregister-Zone. You need to validate each
> customer for
> theft; that's what those antennas are good for. If you would do the
> validation after the theft left the store (LOSTFOCUS), you're
> out of luck,
> the user is already out of the objects responsibility.
>
>
> Servus
>
> wOOdy
>
>
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>
>
>
[excessive quoting removed by server]
©2003 Cotton Mr Jerry P |
