Solution for "De-serialization exception: Unable to find assembly xxxxx"

public void DeSerialize()
{
BinaryFormatter formatter = new BinaryFormatter();
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(OnResolveAssembly);
formatter.Deserialize(stream);
AppDomain.CurrentDomain.AssemblyResolve -= new ResolveEventHandler(OnResolveAssembly);
}

private Assembly OnResolveAssembly(object sender, ResolveEventArgs args)
{
Assembly assembly = System.Reflection.Assembly.Load(args.Name);
if (assembly != null)
{
return assembly;
}

return Assembly.GetExecutingAssembly();
}