carrying a global variable from stack to sub stack

[Slava Paperno]

> How do you carry a global variable from one stack to a substack?

If you set a global variable in the main stack:

on preOpenStack
  global gMyName

  put "Mike" into gMyName
end preOpenStack

then in any card in any substack you can retrieve the value like so:

on openCard
   global gMyName
   answer gMyName --you will see "Mike"
end open Card

In other words, nothing needs to be done to "carry" a global variable from
one stack to another. All you have to do is declare it with the word
"global" in front.

S.

> 
> I have this set of commands on every page of every stack in
> my project:
> 
> on opencard
>  --Create a global variable for the db
>  global
> dbID
>  global curUserID
>  global UN
> 
>  put numtochar(39) into SQ
> 
> I then
> proceed to login to the database (works fine normally) and then access
> whatever data I need.
> 
> I just created a substack called CV with three
> pages - pgCV1, pgCV2 and pgCV3
> 
> I need the login credentials of the user
> to carry over so the fields on these pages can be populated with the
> existing data on the database.
> 
> The important variable is dbID and
> curUserID
> 
> What do I need to do, other than the global command, to make
> this happen?
> 
> Mike