Browse the data and dropdown the key data options

I create browse data in the order specified by the drop down key data options. There are 2 key options, key ascending and key descending. In the conditional behavior I have filled in: CHOOSE (? CurrentTab) = 2, I have also determined to use the ascending key, while the default is the descending key. Problems that arise:
When I select the key in the dropdown, browsing data doesn’t change. Browsing data does not follow the key that we specify.

Please help with my problem.