c++ cli - Correct use of IDisposable pattern when using Managed C++ wrapper in C#

itemprop="text">

My C# class creates and uses Managed
C++ object that wraps (allocates and uses) unmanaged C++ objects and resources. The
Managed C++ class correctly implements IDisposable with Destructor and Finalizer.
Therefore, it appears that my C# class should also implement IDisposable. I want to
follow correct IDisposable pattern in C# as
well.

The following is unclear to
me:

• Within
  Dispose method of my C# class, should I treat my Managed C++ objects as managed or
  unmanaged (since they rely on unmanaged resources internally)?
  

itemprop="text">

class="normal">Answer

Yes, your
C# class should implement IDisposable as well. Its Dispose() method should simply
dispose the C++/CLI objects. No need for a finalizer, you already implemented one in
your wrappers. Your wrappers are no different from many other .NET classes that wrap an
operating system resource.

For
example:

class Test : IDisposable
            {
 private CppWrapper obj;

 //...
 public void
            Dispose() {
 if (obj != null) { 
 obj.Dispose();
 obj =
            null;
 }

            }
}