ruby's method_missing in c#!!

public class ClassWithMethodMissing : DynamicObject {
  public override bool TrySetMember(SetMemberBinder binder, object value) {
    _dictionary[binder.Name] = value;
    return true;
  }

  public override bool TryGetMember(GetMemberBinder binder, 
      out object result) {
    return _dictionary.TryGetValue(binder.Name, out result);
  }
}