Path: utzoo!mnetor!tmsoft!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!usc!elroy.jpl.nasa.gov!zardoz.cpd.com!dhw68k!emmayche
From: emmayche@dhw68k.cts.com (Mark Hartman)
Newsgroups: comp.sys.mac.programmer
Subject: Re: 4D question
Message-ID: <1990Dec21.191146.4756@dhw68k.cts.com>
Date: 21 Dec 90 19:11:46 GMT
References: <1523@tharr.UUCP>
Organization: Wolfskill & Dowling residence; Anaheim, CA (USA)
Lines: 38

Ian:
 
To solve your problem, you first need to get the current selection in your
customer or supplier file to the records you'd like to have appear in the
pop-up menu.
 
Now, something to remember: arrays, scrolling areas and pop-up menus are
treated as one and the same by 4D.  Therefore, you can do all sorts of
array-oriented tricks for pop-up menus.
 
Convert the current selection to an array by using SELECTION TO ARRAY, and
make sure that the pop-up menu area on the screen has the same name as the
array (or use COPY ARRAY).
 
Something to remember about arrays: they have a special property, which is
the "current item" (just like a file).  To get at this item, use the name
of the array standing by itself; it's treated as an integer.  You can use
it to find the currently-selected item (via pop-up or scrolling area), or
assign an integer to it to force the pop-up or scrolling area to select a
given item.
 
If your suppliers/customers change frequently such that you could have 
different items in the menu from session to session, remember to come up
with a way of determining which item your should set the array's "current
item" to which is independent of the ordinal within the array.
 
Note: I'll be happy to answer 4D questions e-mailed to me, or posted to
the net; if the answer is (IMHO) of sufficient interest to 4D people, I'll
post the answer, otherwise I'll mail it.
--
==========================================================================
Have a Merry Christmas; if you don't celebrate Christmas, have one anyway.
==========================================================================
-- 
Mark Hartman, N6BMO           "What are you just standing there for?  Where
Applelink: N1083 or BINARY.TREE      do you think you are, DIS-ney World??"
Internet: emmayche@dhw68k.cts.com                -- General Knowledge, from
uucp: ...{spsd,zardoz,felix}!dhw68k!emmayche                CRANIUM COMMAND