Question

How to remove a value from dictionary with specified key in C#

Answer 1

using System;
using System.Collections.Generic;

namespace ConsoleApplication_C_Sharp
{
    class Program
    {
        static void Main(string[] args)
        {
            Dictionary<string, int> dictionary = new Dictionary<string, int>();

            dictionary.Add("c#", 11);
            dictionary.Add("java", 13);
            dictionary.Add("c++", 15);
            dictionary.Add("python", 9);
            dictionary.Add("php", 8);
            foreach (KeyValuePair<string, int> keyval in dictionary)
            {
                Console.WriteLine("Key = {0} - Value = {1}", keyval.Key, keyval.Value);
            }

            dictionary.Remove("php");
            dictionary.Remove("python");
            Console.WriteLine();
            foreach (KeyValuePair<string, int> keyval in dictionary)
            {
                Console.WriteLine("Key = {0} - Value = {1}", keyval.Key, keyval.Value);
            }
        }
    }
}

/*
run:

Key = c# - Value = 11
Key = java - Value = 13
Key = c++ - Value = 15
Key = python - Value = 9
Key = php - Value = 8

Key = c# - Value = 11
Key = java - Value = 13
Key = c++ - Value = 15

*/

 

70+ SQL courses for beginners and professionals