Question

Is there a way to do this in C#? I know that the subclass will call the superclass constructor before calling its own constructor, but what If I have some code on the superclass that should only be executed after all the subclasses constructors have been called?

Answer 1

One way to achieve this would be to go for a 2 phase construct and initialize. So you construct the instances and then call an initialize method which invoked the base class Initialize in the appropriate order

class MyBase
{
  // Only if need to do some core initialization
  public MyBase()
  {
  }

  public virtual Initialize()
  {
    // do some initialization stuff here
  }
}

class MyDerived : MyBase
{
  // Only if need to do some core initialization
  public MyDerived()
  {
  }

  public override Initialize()
  {
    // do some initialization stuff here

    // Call the base class initialization function
    base.Initialize();
  }
}