Multiple level inheritance in WCF in C# -


i have 3 classes:

[datacontract] [knowntype(typeof(b))] [knowntype(typeof(c))] public class {    [datamember]    public string value { get; set; } }  [datacontract] public class b : {    [datamember]    public string othervalue { get; set; } }  [datacontract] public class c : b {    [datamember]    public string anothervalue { get; set; } }

when i'm trying create class c , send using wcf, complains:

element 'http://tempuri.org/:b' contains data type maps name 'http://schemas.datacontract.org/2004/07/c'. deserializer has no knowledge of type maps name. consider using datacontractresolver or add type corresponding 'c' list of known types - example, using knowntypeattribute attribute or adding list of known types passed datacontractserializer.'.

did put knowntype attribute in wrong place? or cant create such classes?

when create class b, work.

thanks


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