In the CLV example there is no Column Header ... The CLV has a _Clicked event from which you get the Item / Row Index
With this you can access the Item/Row Views.
With reference to your other thread...
https://www.b4x.com/android/forum/threads/alternative-to-b4xtable.110450/
Just place a Panel with 2 Labels as a header. You can then use the Label_Click event.
(But to be honest ... with the CLV I do not See what extra benefit you will get, over using the clv_Click event.
Still good to create your own header / field labels though.