WCF and Enums : The underlying connection was closed: The connection was closed unexpectedly
Problem:
I was getting the error "The underlying connection was closed: The connection was closed unexpectedly" when retrieving an array of a complex class.
Diagnosis:
It turns out that one of the enums in the class was not declared properly and this was causing this ambiguous error.
Solution:
Thanks to Merrick Chaffer for his article that told me what my I was missing.
The service needs the enum type to be registerd as a service known type:
[ServiceContract(Namespace = "")] [AspNetCompatibilityRequirements(RequirementsMode = AspNetCompatibilityRequirementsMode.Allowed)] [ServiceKnownType(typeof(SuitType))] public class PokerService {
and the Enum needs each value used to have an [EnumMember] attribute:
public enum SuitType { [EnumMember] Unknown = 0, [EnumMember] Club = 1, [EnumMember] Spade = 2, [EnumMember] Diamond = 3, [EnumMember] Heart = 4, }
