[DUG] Edit box exit event

[Bevan Edwards]

Hi John,

I don't know about elegant, and it's been a while since I last did 
something like this, but I used to have a variable in the form class 
called bSystem (boolean, of course).

In the OnExit event I check if this is true, and then just return if it is.

Then anywhere that I don't want the event to "execute", I just set 
bSystem to true before I do anything else.

Remember to reset it to false again afterwards though! ;)

Regards,

Bevan


John Bird wrote:
> On an edit box (TEdit), in the exit event I often will have some
> verification code for any alteration made to the text.
> 
> However sometimes I don't want it to fire, for example if elsewhere on the
> form is an unrelated button eg "Setup Options" and the user clicks there in
> this case I just want focus to go to the other control, without firing the
> exit event.  (I don't mind losing the contents or the checking of the Tedit
> in this case, as the user has elected to do something unrelated).  However
> the exit event on the Tedit fires before any event code on the Tbutton
> (Setup Options) fires.
> 
> It seems to me to require code in the Tedit exit event checking how the exit
> has been fired...whether by Tab key, or by clicking elsewhere.  But this
> gets quite tedious if there is a screen of Tedits.  And it has to be smart -
> if the user has just clicked on the next Tedit field, in that case I would
> want the exit event on the previous one to still fire.
> 
> How do others do this - is there an elegant way?
> 
> John
> 
> 
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