collection_adapter::key_type (STL/CLR)

 

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The type of a dictionary key.

Syntax

typedef Key key_type;  

Remarks

The type is a synonym for the template parameter Key, in a specialization for IDictionary or IDictionary<Value>; otherwise it is not defined.

Example

// cliext_collection_adapter_key_type.cpp   
// compile with: /clr   
#include <cliext/adapter>   
#include <cliext/map>   
  
typedef cliext::map<wchar_t, int> Mymap;   
typedef cliext::collection_adapter<   
    System::Collections::Generic::IDictionary<wchar_t, int>> Mycoll;   
typedef System::Collections::Generic::KeyValuePair<wchar_t,int> Mypair;   
int main()   
    {   
    Mymap d1;   
    d1.insert(Mymap::make_value(L'a', 1));   
    d1.insert(Mymap::make_value(L'b', 2));   
    d1.insert(Mymap::make_value(L'c', 3));   
    Mycoll c1(%d1);   
  
// display contents " [a 1] [b 2] [c 3]"   
    for each (Mypair elem in c1)   
        {   
        Mycoll::key_type key = elem.Key;   
        Mycoll::mapped_type value = elem.Value;   
        System::Console::Write(" [{0} {1}]", key, value);   
        }   
    System::Console::WriteLine();   
    return (0);   
    }  
  

[a 1] [b 2] [c 3]  

Requirements

Header: <cliext/adapter>

Namespace: cliext

See Also

collection_adapter (STL/CLR)
collection_adapter::mapped_type (STL/CLR)