Datagrid select issue

Question

I am using flex builder 2.01 and have been using datagrids
for a while now. I have recently ran into a weird situation where I
have one datagrid out of three that just will not allow a manual
selection. If I set the index to 0 for instance, the initial view
of the datagrid shows the first item selected. If I go to select a
different item, the first item becomes unselected and no other item
can be selected. If I leave the initial state to be no item
selected, I can never select an item. All other datagrids are
working fine. I have tried to set selectable to true but that
didn't help. This is really odd, any assistance would be greatly
appreciated.

Answer 1

Mmmm... Well the good news is I fixed it. The bad news is I
have no clue why it fixed it. This particular datagrid is in a
different tab in a tabnavigator panel. Attached is the expanded
working code. On the line:
<mx:Canvas label="Archived" width="100%" height="100%"
id="ArchiveTab">
I had a click="{GetPropertyArchive()}" to refresh the data on
tab selection. This was old code that was made unnecessary at a
later date but I did not remove the code. My guess is the datagrid
assumed the characteristics of the parent tabnavigator and instead
of ... wait that can't be right. If that was the case then changing
the datasource would not have fixed the select issue because the
'click' definition on the tabnavigator still existed. I would
really like to understand why this mattered so I could avoid this
issue in the future. Any ideas??