using System;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

    //<msxsl:using namespace="System.Collections.Generic"/>

        Console.WriteLine(getDescription("DLSC"));  

        Console.WriteLine(getDescription("me"));

    }

        public static string  getDescription (string key){

​

              Dictionary<string, string> descDict = new Dictionary<string, string>(){ 

                                            {"RTSC_DLVC", "RTSC_DLVC - Default Value" },

                                            {"DLSC", "DLSC - Delta Schedule Change Create Event" }

                                             };

            if (descDict.ContainsKey(key))

                return descDict[key];

            else 

                return key + " - Default Value";

        }

}