QueryableCollectionView and ObservableItemCollection

[Alexander]

Hi.
I use Silverlight 5. Server side is Win7, Client side is WinXP.
On Client side don't work next code:

var tmp = new QueryableCollectionView(new ObservableItemCollection<MyWrapper>());

Message error:

Attempt by method 'System.Linq.EnumerableQuery.Create(System.Type, System.Collections.IEnumerable)' to access method 'System.Linq.EnumerableQuery`1<System.__Cannon>..ctor(System.Collections.Generic.IEnumerable`1<System.__Canon>)' failed.

On Client side with Win7 it work fine.

Regards,
Alexander

[Alexander]

I find my error. MyWrapper class was internal class.