Question

How to use a list of KeyValuePair in C#

Answer 1

using System;
using System.Collections.Generic;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main()
        {
            var list = new List<KeyValuePair<string, int>>();

            list.Add(new KeyValuePair<string, int>("C#", 1));
            list.Add(new KeyValuePair<string, int>("C++", 3));
            list.Add(new KeyValuePair<string, int>("Java", 5));
            list.Add(new KeyValuePair<string, int>("PHP", 87));

            foreach (var element in list) {
                Console.WriteLine(element);
            }
        }
    }
}


/*
run:
   
[C#, 1]
[C++, 3]
[Java, 5]
[PHP, 87]
 
*/

 

70+ SQL courses for beginners and professionals

Answer 2

using System;
using System.Collections.Generic;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main()
        {
            var list = new List<KeyValuePair<string, int>>();

            list.Add(new KeyValuePair<string, int>("C#", 1));
            list.Add(new KeyValuePair<string, int>("C++", 3));
            list.Add(new KeyValuePair<string, int>("Java", 5));
            list.Add(new KeyValuePair<string, int>("PHP", 87));

            foreach (KeyValuePair<string, int> pair in list) {
                Console.WriteLine("{0} : {1}", pair.Key, pair.Value);
            }
        }
    }
}


/*
run:
   
C# : 1
C++ : 3
Java : 5
PHP : 87
 
*/

 

70+ SQL courses for beginners and professionals