Question

Apologies for the trivial question, but im having problems with the examples i find on microsoft support website.

Could someone please show me how to declare the libraries require (above main) for the ArrayList so that i can just define it as such:

ArrayList a = new ArrayList();

I cant get the libraries for ‘ArrayList’ to be recognised?

Answer 1

Are you using C++/CLI (managed C++)? This class is not available in native C++, fyi.

std::vector is the closest native code equivalent.

If you are using C++/CLI then you have to add a reference to the required assembly (System.Collections) in your project – right click the project in Solution Explorer, select Add Reference, pick from .Net tab.

Then make it available to your code as shown below and in the MSDN examples:

using namespace System::Collections;

See this one for Add method, for instance.