Hi Vlad nice to meet you.
Thank for your help this work great.
Finding out about setall I found this:

thisform.setall("DynamicBackColor", "IIF(MOD(RECNO( ), 2)=0, RGB(255,255,255), RGB(255,255,202))", "Column")

This change the color for each two record, however I want to change the row color and the header color just when the user be in a cell, I mean just the row active.

I download the Nick Neklioudov's Grid Highlighter Demo Form but I can not undertand it.

Are you able to explainme How use it.