With BeforeRowColchange I can prevent the Grid form changing rows when the data is not completed as I want.
With the Valid event I can prevent the Grid from losing focus to other controles when the data in the row is not completed as I want. Other controles are not accesible then as I have tested and that works well.

The problem I have is with the TreeView controle. When no other control can get the focus the TV can. Why is that ? Because it is an ole control ??

Now I'm trying to do it with more code with the GotFocus event of the TV. But can someone tell me how this works or have to work ??

Regards,
Jan