// C# Extension Method

// Doc: https://csharp-extension.com/en/method/1002682/namevaluecollection-todictionary

​

// @nuget: Z.ExtensionMethods

​

using System;

using System.Collections.Specialized;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var input = new NameValueCollection {{"txt", "notepad.exe"}, {"bmp", "paint.exe"}, {"dib", "paint.exe"}, {"rtf", "wordpad.exe"}};

​

        // C# Extension Method: NameValueCollection - ToDictionary

        var output = input.ToDictionary(); // return a Dictionary;

        foreach (var item in output)

        {

            Console.WriteLine("[{0}, {1}]", item.Key, item.Value);

        }

    }

}