I have a datagrid bound to a observable collection and a background thread is regularly updating the collection when an event is fired.( subscribed to a market data service) . I need to change the foreground of the cell value if (Previousvalue > NewValue)
. I guess I need a conveter but how can I get access to the previous value ? Or is there a smarter way to do this. Performace is a concern as well.
Thanks v much.
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