Been working on this a couple of days now. We're starting a LOB app with Silverlight and we're running into a big obstacle right away.
Began using Fiddler to examine what was going on and found out something very interesting.
Any queries (IQueryable functions on the server solution) that return more than 1.5MB of data will fail with the following error:
System.ServiceModel.DomainServices.Client.DomainOperationException:
Load operation failed for query.
The same tables return fine as long as I limit the results to be less than 1.5MB of data. The error appears to be on the server, so I'm guessing it doesn't really have anything to do with Silverlight.
Tried this on multiple tables and consistently run into some kind of barrier at 1.5MB being the "body" size of the response.
Any help greatly appreciated.