RE: DDS screen: how to ensure field keyed is numeric for alpha-descri bedfield

OK, this got my curiosity up.  What does this feature do that "Y" doesn't 
do?
_______________________
Booth Martin
Booth@MartinVT.com
http://www.MartinVT.com
_______________________




"Richard Jackson" <richardjackson@richardjackson.net>
Sent by: owner-midrange-l@midrange.com
07/11/2000 09:19 PM
Please respond to MIDRANGE-L

 
        To:     <MIDRANGE-L@midrange.com>
        cc: 
        Subject:        RE: DDS screen: how to ensure field keyed is numeric 
for alpha-descri bed 
field
For what it's worth:
 
JDEdwards World software - the RPG product - does this all the time.  By 
"all the time" I mean they do it for every field that defined as numeric 
in the data dictionary that shows up on a screen. 
 
The screen field is data-type character and the user can type anything 
they want into it.  JDE has a "numeric scrub" routine.  It reads the value 
left to right throwing away anything that isn't a digit, decimal point, or 
sign.  Then it moves the number into a zoned numeric field, aligns the 
decimal and sets the sign. 
 
Before display, they move the numeric field into an array, insert the 
editing, then move it to the character display field. 
 
Let 'em type anything they want.  Take out only the good stuff. 
 
Any you performance types wondered why JDE used so many cycles :)  The 
trick used to perform decimal alignment still brings tears to my eyes. 
Richard Jackson
mailto:richardjackson@richardjackson.net
www.richardjacksonltd.com
Voice: 1 (303) 808-8058
Fax:   1 (303) 663-4325 
-----Original Message-----
From: owner-midrange-l@midrange.com [mailto:owner-midrange-l@midrange.com]On 
Behalf Of Dave Schnee
Sent: Tuesday, July 11, 2000 12:56 PM
To: MIDRANGE-L@midrange.com
Subject: Re: DDS screen: how to ensure field keyed is numeric for alpha-descri 
bed 
field

At 12:23 PM 7/11/00 , you wrote:

Our database cust# is an alpha field, but we only want to allow numeric 
entries into the field. 

What is a good way to ensure data keyed into a field is numeric using DDS 
screens? 

I can't chain to the cust file in some cases because ranges are allowed, 
for example two fields exist on the screen to key a start cust# and an end 
cust#.

Also, I dont want to allow an entry such as "0   0   0" (problem, spaces 
in between). 

What is the simplest way to accomplish this? 

TIA 

Define the customer # fields on the screen as numeric.  Do all the 
checking (e.g., "from" is not greater than "to", range checks, etc.) on 
these numeric fields.  THEN move the numeric fields to alpha fields to 
actually USE as customer # in your application.

Dave Schnee,
Barsa Consulting Group, LLC.


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