C# Equivalent for C++ Macros and using Auto<> Properties

Question

I have some auto-instantiation code which I would like to apply to about 15 properties in a fairly big class. The code is similar to the following but the type is differ

Answer 1

You can make a generic struct that handles the lazy creation:

public struct LazyCreate where T : class, new() {
   private T _value;
   public T Value {
      get {
         if (_value == null) {
            _value = new T();
         }
         return _value;
      }
   }
}

protected LazyCreate _propertyName;
public ComplexType PropertyName {
    get {
        return _propertyName.Value;
    }
}