How to write a custom serializer by using DataContractSerializer for generic type?

[gubbedeefly]

I want to write a custom serializer for storing the session state into Azure Cache (Preivew), so that means this custom serializer has to implement IDataCacheObjectSerializer (if I am wrong, please let me know). The reason why I need to write this custome serializer is i need to serialize some Linq objects which contain some System.Data.Linq.EntitySet attributes. And the default serializer "NetDataContractSerializer" cannot serialize the EntitySet.My plan is to write a custom serializer by using DataContractSerializer (I searched some articles that mentioned DataContractSerializer can serialize EntitySet, so if I am wrong, let me know please), but the problem is how I can write a custom serializer that can support generic type.Currently, my codes for custom serializer are like:\[code\]public class CustomSerializer : IDataCacheObjectSerializer{ public CustomSerializer() { } public object Deserialize(System.IO.Stream stream) { /* How can I know the type of object?????? */ DataContractSerializer dcs = new DataContractSerializer("Type of object"); } public void Serialize(System.IO.Stream stream, object value) { DataContractSerializer dcs = new DataContractSerializer(value.GetType()); dcs.WriteObject(stream, value); }}\[/code\]By the way, I have changed the Linq Serialization Mode to "Unidirectional"Thanks for your help!