>I always though the When() will get control when you click on the object or object get control.
>
>Does the grid has a different behavior?
>For example, the first time I click in a grid, let say column 3. the when() of column 2 get fired.
>is that weird behavior? or it is by design? or it is me?

The grid columns don't have WHEN() event. Can you clarify what the problem is?