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  1.  Home
  2. RPG400-L
  3. March 2007

RE: Ok here is a challenge

OK, I'll bite. I've done this with a choice control program, validity checker, or a list of values in the parameter definition, but if there is another way to do this, I'd be interested to see how it's done. 


On 3/7/07, Douglas Palme <dpalme@xxxxxxxxxxx> wrote:

I received this from one of our RPG gurus and I thought I would present it
to the midrange group and see what ya'll thought:



There is a way to completely control the input from a command and validate
it before the program is actually called. There is also a way to presentthe
actual valid parameters without hard-coding anything. As an example you
could have a command that takes a division number and if you do not enter a
division that exists in the DIVISION file it will not accept the value.


This is true for anything you want to validate, a date, time, printer,
username, etc. Most programmer shy away from writing powerful commands as they do not understand them. 




Anyone?

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