Seny -
A tip for you. You'll see in some of the apps where we use a selection list, we'll do something like:
1. Set resultSelectionList to "-99" in the first action of "Assign Value to Action Result".
2. Start Loop Through Table.
3. Character Function, "Join with Comma" resultSelectionList to value from row 'RecordID', to create a new resultSelectionList.
4. End Loop Through Table.
That way you end up with something like resultSelectionList = -99,1,2,3,4,5
Since -99 is never a valid value for RecordID, and it was declared as -99 so it will always be ignored. Much easier than trimming off the last comma.
Paul