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

This might make things a bit neater, you could add this method to introduce some reuse:

protected ComplexType _propertyName;
public ComplexType PropertyName
{
    get
    {
        return GetProperty(ref _propertyName);
    }
}
.
.
private T GetProperty(ref T property) where T : new()
{
  if (property == null)
    property = new T();
  return property;
}