Hi All,
I searched trough many messages and docs but did not find a solution to this 
trivial looking problem. It would be really nice if someone could point me into 
the right direction.
 
my ToDo:
I have to use a virtual listview for a database with some medium and large 
tables. I would give the user the opportunity to select the active displayed 
sorting order with a click on the corresponding listview header. 
To get the necessary number of records for the table with high performance, 
even for large files, this can be done with a trigger that updates a record 
elsewhere with every delete or insert operation. 

My Problem: 
how to get the relative position for the selected row depending on the selected 
“order by” clause as fast as possible? An estimate should be enough to position 
the scrollbar. 
 
Thanks for any hints.
 
George

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