calling variables in different components

[nif]

hi there,

i apologise if this is a very silly question, but i am fairly new to flex and
busy doing my first project using it and struggling to find the information i
need.

i have created an application that uses components for a multitude of
different display areas. one of my areas is a component that calls 2 other
components to create an input area and a listing area on the same page.
i now need the listing area to populate the fields of the input area with data
from the listing on selection of certain items in my listing. however, i cannot
simply call them by their id as i get the error "Access of undefined property".
how do i access the input area component's scope from within the listing
component?

thanks a mil',
nikki

[peterent]

If you have the id of a component you can reference its public variables and
function by using the dot-notation. If "listing" is the id of a component and
it has a public variable, "input" you do this:

listing.input

to reference the "input" variable (or whatever it is, as long as it is public).

[nif]

hi peter,

thanks for the quick reply. this didn't initially work as the 2 components are
sitting on the same "level"... i.e. nested inside another component.
then i found a reference to a "parentDocument" scope and gave this a bash...
so, parentDocument.listing.input and it worked. i hadn't realised the different
scopes such as parentDocument, Application and parentApplication existed, or at
least how to reference them.
happy days! :)

thanks again,
nikki