[PMW 1.2] Dialog controls vanish upon editing

[F. GEIGER]

Thanks Peter,

but this method doesn't seem to be the reason. I placed a "return 1" as the
first statement in its body. No change for the better.

Kind regards
Franz GEIGER

"Peter Otten" <__peter__ at web.de> schrieb im Newsbeitrag
news:blbi7l$j17$06$1 at news.t-online.com...
> F. GEIGER wrote:
>
> > Hi all,
> >
> > I use PMW 1.2 on Python 2.3.0 on Win2k.
> >
> > I've created a dialog that looks like so:
> >
> >                      +----------------------+
> >                 Name |                      |
> >                      +----------------------+
> >                      +----------------------+
> >    Caption text head |                      |
> >                      +----------------------+
> >                      +----------------------+
> >    # Digits w/o sign |                      |
> >                      +----------------------+
> >                      +----------------------+
> >    Caption text tail |                      |
> >                      +----------------------+
> >                      +--+
> >          Is editable |  |
> >                      +--+
> >                      +--------------------+-+
> >       Parameter name |                    |V| Drop-down.
> >                      +--------------------+-+
> >
> >
> > I pull down the drop-down control, select an item, the drop-down closes
> > and - vanishes. All controls have vanished. After half a second or so
the
> > first one reappears, but w/o its label 'Name'.
> >
> > The other ones reapper if I click onto the pane where they are supposed
to
> > be. They also reapper if I change to an other app and then come back
> > again. I guess this is because a window update is issued by the OS.
> >
> > What do I miss?
>
> I would guess that
>
> >    def _validateNameId_(self, text):
> >       if Proxy.DataProxy().parameterExists(text):
> >          return -1
> >       return 1
>
> is either awfully slow and/or throws an exception.
>
> You could easily verify this assumption with
>
> (a)
> def _validateNameId_(self, text):
>     return 1
>
> and
> (b)
> def _validateNameId_(self, text):
>     try:
>         if Proxy.DataProxy().parameterExists(text):
>             return -1
>         return 1
>     except: # generally a bad idea
>         print >> sys.stderr, "something went wrong"
>         return 1
>
>
> Peter