Forms ??: Global Variables vs. Parameters

[Jennifer Bhamoo]

Hello,
I'm just doing some reading and was wondering about using global variables vs. parameters
Is there any differences or advantages of using one or the other? or a scenario where you would have to use either parameters over global variables, etc.?
Thank you,
Jennifer

[Remar Uy]

Hi Jennifer,
I got this from Forms6i online-help:
==================================================
Parameter values are not visible across multiple forms. Thus, even if there is a parameter named p1 defined in both Form A and Form B, each form has a separate context, and setting the value of p1 in Form B has no effect on the value of p1 in Form A. For this reason, parameters are useful in multiple-form applications primarily as inputs to a form when it is first invoked.
If your application requires variables whose values are visible across called forms, you should use global variables. Global variables are visible across called forms, and remain active until they are explicitly deleted with the ERASE built-in procedure, or until the session ends.
==================================================
Just make sure to erase global variables when no longer needed to release its associated memory.
HTH,
Remar

[Jennifer Bhamoo]

Thanks a bunch! That helps clear things up!
-Jennifer