Problem:
Using code how can you make a specific Tab page within a Tab control the current page.
Resolution:
You can use with the SelectedPage or SelectedIndex property of the TabControl object.
Some example code for this would be:-
set tabControl1::"SelectedIndex" to 1 *> Its ZERO Indexed so 1 is actual Tab Page 2
*> or
set ls-tabpage to tabControl1::"TabPages"::"Item"("tabpage2")
set tabControl1::"SelectedTab" to ls-tabpage