table and formatter

Hi,

im trying to bind an EntitySet to a List, which works fine if i hardcode the address. But as soon as im trying to make it dynamic by using a Formatter it trows me an error saying:

"s[M].push is not a function".

My guess is that i cant bin the Formatter directly into the table like that. But i dont know how to fix it.

I'd the grateful for every idea you guys have.

Thanks in Advance

Chris