LiveCode Forums.

How do I add a new card to a substack using a "new" button on mainstack?

Hi Appmann,

To do this you must first set the defaultStack property to your substack and then create a new card.

An example of this in a button is

After this handler has executed, the defaultStack should revert to your main stack.

Kind Regards,

Neil Roger
--
RunRev Support Team ~ http://www.runrev.com
-

thx.

Ill try to make it work

when i create the new card of substack, I want to name it with the info from a field on my mainstack. How does this work?

I tryed to set cName of mainstack to the text from the field. Then "create card cName of stack "ProfilesSub"".

Do i have to create the card and give it a random name, before i change the name to text from field?

appmann wrote:I tryed to set cName of mainstack to the text from the field. Then "create card cName of stack "ProfilesSub"".

Looks OK! How did you fill the variable cName?

Oh, completely overlooked that one: Please use the syntax, that Neil provided!

i use Set the cName to field "name"

...
put fld "name" into cName
## Just like you surely did several times before to PUT something INTO a variable
...

I really cant make this work

Im trying to:
take som text from a field on my mainstack and put it into the name of a new card of substack, just created.

i did this:
set the cWhee of this stack to fld "fieldname"
set the defaultStack to "substack"
create card cWhee

I want to put the string into a variable cWhee (or something else), to use later in the same script.

I tryed to put the fieldname into the cWhee but it didnt work either.
the code does set the defaultstack to substack and also creates a new card. But it sets the name to cWhee. ???

Is´it possible to set a variable on mainstack and use it on substack?

set the cWhee of this stack to fld "fieldname"

You are not putting content into a variable here, but you create a custom property of your stack named "cWhee"!

As I wrote earlier:
...
put fld "fieldname" into cWhee
set the defaultStack to "substack"
create card cWhee
...
This will do what you want!

Thx a lot Klaus. Again.

Can u explain when to use set the cName and put into the cName?

What is the difference?

Hi appman,

...
put "Whatever" into this_or_that
...
Will PUT content into a variable or object

...
set THE cWhatever OF (object reference) to any_value
...
Will put -> any_value into the custom property named cWhatever of whatever object you supply.

A custom property is similar to a variable (but its neither local or global) and is TIED to a specific Livecode object,
be it stack/card/field/button or whatever.

But it can be accessed form anyhwere in your current LC session:
...
put the cMyProp of stack "not the current stack" into myvalue
...

The main difference is that a CP will be SAVED with the stack, so the values are not temporary if you want them to.


Best

Klaus

thx for the explanation Klaus.

That make a lot sence.

Your way to explain actually make the basic understanding a lot easyer.