How can i set focus on table controls first line

I have lot of fields and one table control on a screen. The user enters a delivery number on the screen in a field and clicks on "Get" button which retrieves the handling units for that delivery in a table control. By default i want to select the first line of that table control after the user clicks "Get" button and retrieves data.

<b><REMOVED BY MODERATOR></b> Thanks for reading.

Message was edited by:

Alvaro Tejada Galindo