Thank you very much . I have tried this and this works ! But this is
working properly when i only use my keyboard or mouse to navigate. But in
the cases when  i  use a special navigation  toolbar,  only this small
triangle of data grid row moves when I am navigating through data grid rows.
The blue bar usually  sticks in the original position . Maybe somebobady
knows where could I find a decision?

thanks,

Serg