Using Dictionary<(Of <(TKey, TValue>)>) Class in C++

[BobFX]

Hi,

I need to convert some C# code into C++. It starts with:

Dictionary<string, ListViewItem> mItems = new Dictionary<string, ListViewItem>();

I can't find a full example in the C++ Visual Studio documentation.

How do I declare a Dictionary object? A small example would be appreciated.

Thanks.

[jonsca]

using namespace System::Collections::Generic;       
//at the top of Form1.h

//here are the details of my little stub just to give you a ready test
//program (I don't know what your specific requirements for the
// LVI are so I just cobbled it into a button event.
ListViewItem ^ lvi = gcnew ListViewItem("test2");
Dictionary<String^,ListViewItem^> myDictionary = 
                                       gcnew Dictionary<String^,ListViewItem^>();
myDictionary.Add("test",lvi);
MessageBox::Show(myDictionary["test"]->Text);

Happy Holidays, hope this helped (I'm really seeing a lot of these C++/CLI specifics for the first time so it's a good experience all around).

[BobFX]

Happy Holidays, hope this helped (I'm really seeing a lot of these C++/CLI specifics for the first time so it's a good experience all around).

Yes, it's a good start, thanks!

[Nick Evan]

why not use a std::map? Or did I misread your question?

[jonsca]

He's doing the managed code route so his choices are (AFAIK) limited to the .NET spectrum (I think he'd have to marshal in the STL container which I've never done but I've heard nothing good about). I've learned a bit of C# so it looks like stuff I've seen there but with a C++ twist to it.

[jonsca]

... or I guess it's more that you can't store managed types in an unmanaged data structure at all.

http://social.msdn.microsoft.com/Forums/en-US/vcgeneral/thread/aa29a1a9-1ec9-49d9-8148-b83cfc272111

[BobFX]

why not use a std::map? Or did I misread your question?

I'm porting to C++ an existing C# program, so it's easier to stick to the same method.