Vitali Petrov Vitali Petrov - 3 months ago 26
C# Question

Assembly Independent Serialization in .NET

I use Serialization/DeSerialization Technique. BinaryFormatter class.
Each time when new assembly is created the BinaryFormatter can't Deserialize binary data even if the class structure is the same, but the Assembly version differs.
Is it possible to Deserialize binary buffer with no checking the assembly version if the class structure stays unchanged?

Answer

Try this:

public sealed class CurrentAssemblyDeserializationBinder : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        return Type.GetType(String.Format("{0}, {1}", typeName, Assembly.GetExecutingAssembly().FullName));
    }
}
formatter.Binder = new CurrentAssemblyDeserializationBinder();
formatter.Deserialize(inStream);

Thread Poster Added:

Yes, it works. Just make sure if any types of System.Generic or other Libs in the binary data are present, then you have to pass them through without changes. "ResizableControls" - old Assembly lib' name, "EntityLib" - new Assembly name. Also, the Version number is to be replaced as well, on demand.

public sealed class CurrentAssemblyDeserializationBinder : SerializationBinder
{
    public override Type BindToType(string assemblyName, string typeName)
    {
        string name;
        if (assemblyName.Contains("ResizableControl"))
        {
            name = Assembly.GetAssembly(typeof(EntityLib.Pattern)).ToString();
        }
        else
        {
            name = assemblyName;
        }
        return Type.GetType(String.Format("{0}, {1}",
            typeName.Replace("ResizableControl", "EntityLib"), name));
    }
}

Thanks, it is exactly what I needed.