// Online C# Editor for free

// Write, Edit and Run your C# code using C# Online Compiler

using System;

using System.Collections.Generic;

using System.Linq;

​

public class HelloWorld

{

    public static void Main(string[] args)

    {

        Console.WriteLine ("Hello Mono World");

        Dictionary<string, int> tieringLevel = new Dictionary<string, int> {

             {"LOW-TOUCH",  1  },

             {"PROSPECT", 2 },

             {"PARTNER", 3 },

             {"KEY",4 },

             {"HIGH-POTENTIAL", 5 },

             {"STRATEGIC", 6 },

             {"NETWORK" , 7 },

             {"GROUP/NEWTORK" , 8 },

             {"GROUP" , 9},

        };

        // build your list of all tiering infos from the XML dossier

        List<string> tieringDossier = new List<string>() {"GROUP/NEWTORK","LOW-TOUCH","STRATEGIC","GROUP/NEWTORK","GROUP","HIGH-POTENTIAL"};

        // get the highest tiering dossier value based on dictionnary key/value

        var highest = tieringDossier.OrderByDescending(x => tieringLevel[x]).ToList();

        var tiering = string.Empty;

        if (highest.Any()) {

            tiering = highest.First();

            Console.WriteLine("Max TIERING is : " + tiering);

            // here you have the max tiering info from the value fetch in the dossier

        }

        else {

            // no tiering infos

            tiering = "PROSPECT"; // instead of hardcoded text, store the value "PROSPECT" in a const in your new TieringUtil class.

            Console.WriteLine("Default TIERING is : " + tiering);

        }

        foreach (string item in highest)

            Console.WriteLine(item);

    }

}