   XML serialization in C++
  I have some code that can read a text file...However i run into a big problem!System::IO::FileStream myfile("example.txt");System::Xml::Serialization::XmlSerializer serializer(TerrainData::typeid);TerrainData* x;x = dynamic_cast<TerrainData*> (serializer.Deserialize(myfile));Error5error C2440: 'type cast' : cannot convert from 'System::IO::FileStream' to 'System::IO::Stream'Help?   