C# 6.0 Feature: Dictionary Initializers

Dictionary Initializers

    For Dictionary, In C#6 you can Initializes in much  easier way. 

    

    In earlier version, if you have to initilize the Dictionary, you have to write 

    {"Key", "Value"}.

    Now you can initilize like this ["Key"] = value.

    See below example:

    

   Before C#6

using System;

    using System.Collections.Generic;

    namespace NewInCSharp6

    {

        class Program

        {

            private static void Main(string[] args)

            {

                Dictionary<string, string> FullName = new Dictionary<string, string>()

                {

                    { "FirstName", "Peter" },

                    { "LastName","Hansen" }

                }; 

                

                foreach (KeyValuePair<string, string> keyValuePair in FullName)

                {

                Console.WriteLine(keyValuePair.Key + ": " + keyValuePair.Value + "\n");

                }

                Console.ReadLine();

            }

        }

    }

After C#6

using System;

using System.Collections.Generic;

using static System.Console;

namespace NewInCSharp6

{

    class Program

    {

        private static void Main(string[] args)

        {

            Dictionary<string, string> FullName = new Dictionary<string, string>()

            {

                // see the new syntax. Easy to use.

               ["FirstName"]= "Peter" ,

               ["LastName"]=  "Hansen" 

            }; 

            

            foreach (KeyValuePair<string, string> keyValuePair in FullName)

            {

                WriteLine(keyValuePair.Key + ": " + keyValuePair.Value + "\n");

            }

            ReadLine();

        }

    }

}

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