static void Main(string[] args)
{
User user = new User(17, "Neil");
IDataService dataService = new DataServiceProxy(user);
Stream result = dataService.GetData();
if (result == Stream.Null)
{
user.Age = 18;
result = dataService.GetData();
if (result != Stream.Null)
{
using (StreamReader streamReader = new StreamReader(result))
{
Console.WriteLine(streamReader.ReadToEnd());
}
}
}
Console.ReadKey();
}
