Question Concerning Usage of Table Controls

I currently have three screens. The first screen is the main screen and the other two screens are subscreens called from within the main screen. Inside each of the two subscreens, I have a separate table control. Each table control provides a display of specific data. I would like the first table control to be maintained by certain actions done in the second subscreen. At the moment, I do know that the internal table used for the first table control is being modified accordingly. The issue is the table control on the screen is not being modified based on the change reflected on the internal table. If I modify the internal table, the table control on the screen still reflects the old value.

Is what I am trying to do possible? Do I need to force an event in order for the table control to be modified or refreshed from the internal table? I have no issue in modifying the table control defined in the second subscreen. The table control on the first subscreen is the one where I have the issue with update.

Thanks in advance.

--Vince