using System;

using System.Collections.Generic;

​

​

public class Program

{

    public static void Main()

    {

        IDictionary<string, string> example =

            new Dictionary<string, string>();

        example.Add("txt", "notepad.exe");

        example.Add("bmp", "paint.exe");

        example.Add("dib", "paint.exe");

        example.Add("rtf", "wordpad.exe");

        string tempUri = "Something's seriously wrong.";

        if (example is Dictionary<string, string>)

        {    //testing indicates we never actually make it into this if

            var tempDict = example as Dictionary<string, string>;

            if (!tempDict.TryGetValue("bmp", out tempUri))

            {

                Console.WriteLine("Nope.");

                tempUri = "not found";

            }

            else {

                Console.WriteLine( string.Format("Value = {0}", tempUri ));

            }

        }

    }

}