I have an arraycollection that has two columns.  the second column actually 
stores an object that has properties on it.  I want to put those values into a 
second datagrid.  Can I do this using binding?  I was able to use a loop to 
fill the second arraycollection, to which a datagrid is bound, by triggering 
the loop function from the first arraycollection's collectionChange event.

However, I don't like this approach because it'll probably cause issues with 
selectedItem on the datagrid (removeAll then repopulate would throw it off), as 
well as a noticeable "flicker" when dealing with a large dataset.

If there's another format for the second column in the first arraycollection 
that would work better than an object, I'm open to that too.

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