Keep ID-value after using Combobox

I want my users to pick an item in a Windows Forms combobox. To fill that combobox I use a SSQLS like so:

sql_create_2(TblUrensoort, 2, 0, string, UrensoortOmschrijving, int, UrensoortID);

--

mysqlpp::Query qUrensrt = con.query();

qUrensrt << "select UrensoortOmschrijving, UrensoortID from TblUrensoort";

vector resUrensrt;

qUrensrt.storein(resUrensrt);

 

cBUren->Items->Clear(); //empty the combobox

vector::iterator it;

mysqlpp::Row rowUrensrt; //still here from an attempt without SSQLS

for (it = resUrensrt.begin(); it != resUrensrt.end(); ++it) {

String ^ a = gcnew String(it->UrensoortOmschrijving.c_str());

      AddMessage(a);// AddMessage function like it is in the example.

}

This works just OK, but this way, through the conversion, I disconnect the
ID and the String.

Now here's my problem: After my user has made a choice, I want to continue
in my program with the "ID-value" instead of the "String-value". But as far
as I can see there is no way that I can get the two "connected" again as
they were in the vector. (Without doing another query!)

I have thought about using an Arraylist, but since I would have to fill that
with the values from the vector that idea seems to me like reinventing the
wheel.

Can anybody enlighten me?