Get row number from table based on listbox selection

[behedwin]

How do i get the table row number based on the selection in a listbox?


I have a listbox that i populate with data from a table.

I want to select a row in the listbox and get that datas row number from the table.
Not the row number of the listbox, but the row from the table where the data is stored.

This problem is really annoying...
Cant figure out how to approach this.

If user select data xxx in listbox, search table1 and return row number of result.
How?