jumping among Mainstack and substacks isn't easy

Robert Brenstein rjb at robelko.com
Mon Jun 18 16:16:44 CDT 2012


On 18.06.2012 at 12:03 Uhr -0700 Bob Sneidar apparently wrote:
>I'm not entirely sure this is the issue, but let me describe how 
>Livecode interprets your code. When you say "field boy", Livecode 
>translates that to "field "boy" of the current card of the topstack" 
>(others will correct me if I am wrong). LC allows you to do this for 
>the sake of brevity in coding, so you do not have to spell out the 
>full path to every object in order to use it. But it's something you 
>need to keep in mind when you being to navigate to different cards 
>in a script.

Not topstack but defaultstack. Usually these are the same but not 
always. Also, when a script navigates to a new card/stack, its 
context will stay with the old card/stack by default.

@Mark: the solution for you is to extend the object reference to 
include the stack, so instead of

get fld "boy"
you say
get fld "boy" of stack "indexstack"

This works for fetching the custom properties as well. Like

get the mycustomproperty of fld "boy" of card 10 of stack "indexstack"

Mark, you should also look at the dialogData global property. It is 
handy to pass data when switching stacks.

Robert



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