sekobey wrote:
thanks a lot, well o more thing.I want to upgrade my data grid.You see,i add new record to my db and i want to see this new record in my data grid and this data grid is binded to the typed list talked above.How can i do that? Refresh() metod of grid does not work.I think that i can refetch typed list and rebind it again.But it is cumbersome.
No, just refetch the typed list. This is obvious: it's a disconnected object, it doesn't know of any dataupdates in the db, so you have to re-read the data if something changed.