User-defined conversion operator from base class

Question

Introduction

I am aware that \"user-defined conversions to or from a base class are not allowed\". MSDN gives, as an explanation to this rule, \"You

Answer 1

You should use your Solution B (the constructor argument); firstly, here's why not to use the other proposed solutions:

• Solution A is merely a wrapper for Solution B;
• Solution C is just wrong (why should a base class know how to convert itself to any subclass?)

Also, if the Body class were to contain additional properties, what should these be initialized to when you perform your cast? It's far better to use the constructor and initialize the subclass's properties as is convention in OO languages.