using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var tbs = ToList<BirchTables>();

        foreach(var tb in tbs){

            Console.WriteLine(tb.Value);

    }

        }

    public static Dictionary<int, string> ToList<T>() where T : struct =>

        ((IEnumerable<T>)Enum.GetValues(typeof(T))).ToDictionary(value => Convert.ToInt32(value), value => value.ToString());

}

​

public enum BirchTables

{

    customers,

    incident_customers,

    incident_types

}