Re: Programming Command - CMD

That's good Doug and I'm familiar with CMD programming but never done this
b4. Given the limitation of the CHOICEPGM, still how do u program it?


----- Original Message -----
From: "Douglas Handy" <dhandy1@bellsouth.net>
To: <midrange-l@midrange.com>
Sent: Friday, July 19, 2002 12:58 PM
Subject: Re: Programming Command - CMD


> Dare,
>
> >The question now is: How do you program the CHOICEPGM to do what I asked
in
> >my original posting.
>
> The short answer is that you really can't do that effectively, unless the
list
> of files is the library is known to be relatively small.  Most data
libraries
> will probalby have more files than the command prompter will accept from a
> choice program.
>
> Do you have any idea how many files are in the libraries?
>
> Secondly, as also mentioned here, the choice program is not told the
contents of
> any parameters, so you have no simple way of knowing which library to
supply the
> filenames for.
>
> The way you do that is by creating a Prompt Override Program (or POP), and
> making the library parameter a "key parameter".  This makes it get
prompted
> separately first, prior to asking for non-key parameters (like FILE in
this
> case).  Your POP would then have to write the library somewhere -- say a
data
> area in QTEMP -- and the choice pgm for the FILE keyword could then pull
the
> library name from the QTEMP data area.
>
> POP's are also described in the manual on how to define commands, and
somebody
> already posted that link.
>
> Even with the library name, your choice program will still have the size
> limitation.  And beyond that, the user can't directly select from the list
with
> the mouse or cursor -- they have to rekey the name from the list
displayed.
>
> Doug
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