Using a parameter of type Type for casting

Question

How can I cast a object obtained by deserialization into a type that is specified as the method parameter

public Base GetDerived(MemoryStream stream, Type type)
{
   var obj = deserialzer.Deserialize(stream)  ;
   // return obj as type
}

where:

Class Derived: Base {}

and type argument would be typeof(Derived)

Answer 1

Instead of passing it is as a parameter, you can do the following

public T GetDerived<T>(MemoryStream stream) where T : Base
{
   var obj = (T)deserialzer.Deserialize(stream);
   // return obj as type
}

called via

var serialized = obj.GetDerived<MyClass>(stream);

You can read more about generic methods on msdn