determining an event source

I want to attach an event handler to the whole grid and determine the type of the event source (column header, row header, data cell or empty area in the bottom) to perform an actionn depending on it. how could I realize that?

I also want it, who can help us?

The first argument in the action handler is the reference to a template which raised the action (source). You can probably inspect what type of template it is, but I would rather suggest raising different actions to minimize dependency between templates and container control.

good, but how can I assign an action to "ROW" and to "EMPTY SPACE" that is allocated in the bottom of grid?

the row is Active.Templates.Row.
but empty space?