WCF chokes on properties with no "set ". Any workaround?

c# wcf properties datacontractserializer
Andrey picture Andrey · Feb 24, 2010 · Viewed 24.5k times · Source

I have some class that I'm passing as a result of a service method, and that class has a get-only property:

[DataContract]
public class ErrorBase
{
  [DataMember]
  public virtual string Message { get { return ""; } }
}

I'm getting an exception on service side:

System.Runtime.Serialization.InvalidDataContractException: No set method for property 'Message' in type 'MyNamespace.ErrorBase'.

I have to have this property as only getter, I can't allow users to assign it a value. Any workaround I could use? Or am I missing some additional attribute?

Answer

rh. picture rh. · Feb 24, 2010

Give Message a public getter but protected setter, so that only subclasses (and the DataContractSerializer, because it cheats :) may modify the value.

Related questions

Collection was modified; enumeration operation may not execute

I can't get to the bottom of this error, because when the debugger is attached, it does not seem to occur. Collection was modified; enumeration operation may not execute Below is the code. This is a WCF server in a …

Read More
No connection could be made because the target machine actively refused it 127.0.0.1:3446

I'm using the WCF4.0 template -REST. I'm trying to make a method that uploads a file using a stream. The problem always occur at Stream serverStream = request.GetRequestStream(); Class for streaming: namespace LogicClass { public class StreamClass : IStreamClass { public bool UploadFile(…

Read More
The breakpoint will not currently be hit. No symbols have been loaded for this document in a Silverlight application

Ok, what I have: Visual Studio 2010 RC, W7 x64, started a new project type of Silverlight application. Hosting the Silverlight application in a ASP.NET Web Application Project. Silverlight Version 3.0. Added a LinqToSQL Class, a WCF Service, a Winform Tester …

Read More