Silverlight WCF service consuming inherited types in datacontract
- by RemotecUk
Hi,
Im trying to consume a WCF service in silverlight...
What I have done is to create two seperate assemblies for my datacontracts...
Assembly that contains all of my types marked with data contracts build against .Net 3.5
A Silverlight assembly which links to files in the 1st assembly.
This means my .Net app can reference assembly 1 and my silverlight app assembly 2. This works fine and I can communicate across the service.
The problems occur when I try to transfer inherited classed. I have the following class stucture...
IFlight - an interface for all types of flights.
BaseFlight : IFlight - a baseflight flight implements IFlight
AdhocFlight : BaseFlight, IFlight - an adhoc flight inherits from baseflight and also implements IFlight.
I can successfully transfer base flights across the service. However I really need to be able to transfer objects of IFlight across the interface as I want one operation contract that can transfer many types of flight...
public IFlight GetFlightBooking()
{
AdhocFlight af = new AdhocFlight();
return af;
}
... should work I think?
However I get the error:
"The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error."
Any ideas would be appreciated.
