Library.System/Common.Library/CustomObjects/AddressContainer.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Common.Library.CustomObjects
{
    public class AddressContainer
    {
        public string HouseNumber { get; set; }
        public string StreetName { get; set; }
        public string City { get; set; }
        public string State { get; set; }
        public string Zip { get; set; }
        public string AddressLine1 => string.Format("{0} {1}", HouseNumber, StreetName);
        public string AddressLine2 => string.Empty;
        public string CityStateZip => string.Format("{0}, {1} {2}", City, (State.Length > 2 ? GetStateAbbreviationFromName(State) : State), Zip);

        private Dictionary<string, string> States => new Dictionary<string, string>()
        {
            {"AL", "Alabama"},
            {"AK", "Alaska"},
            {"AZ", "Arizona"},
            {"AR", "Arkansas"},
            {"CA", "California"},
            {"CO", "Colorado"},
            {"CT", "Connecticut"},
            {"DE", "Delaware"},
            {"DC", "District of Columbia"},
            {"FL", "Florida"},
            {"GA", "Georgia"},
            {"HI", "Hawaii"},
            {"ID", "Idaho"},
            {"IL", "Illinois"},
            {"IN", "Indiana"},
            {"IA", "Iowa"},
            {"KS", "Kansas"},
            {"KY", "Kentucky"},
            {"LA", "Louisiana"},
            {"ME", "Maine"},
            {"MD", "Maryland"},
            {"MA", "Massachusetts"},
            {"MI", "Michigan"},
            {"MN", "Minnesota"},
            {"MS", "Mississippi"},
            {"MO", "Missouri"},
            {"MT", "Montana"},
            {"NE", "Nebraska"},
            {"NV", "Nevada"},
            {"NH", "New Hampshire"},
            {"NJ", "New Jersey"},
            {"NM", "New Mexico"},
            {"NY", "New York"},
            {"NC", "North Carolina"},
            {"ND", "North Dakota"},
            {"OH", "Ohio"},
            {"OK", "Oklahoma"},
            {"OR", "Oregon"},
            {"PA", "Pennsylvania"},
            {"RI", "Rhode Island"},
            {"SC", "South Carolina"},
            {"SD", "South Dakota"},
            {"TN", "Tennessee"},
            {"TX", "Texas"},
            {"UT", "Utah"},
            {"VT", "Vermont"},
            {"VA", "Virginia"},
            {"WA", "Washington"},
            {"WV", "West Virginia"},
            {"WI", "Wisconsin"},
            {"WY", "Wyoming"}
        };
            
        private string GetStateNameFromAbbreviation(string abbr)
        {
            return States.FirstOrDefault(val => val.Key == abbr).Value;
        }

        private string GetStateAbbreviationFromName(string name)
        {
            return States.FirstOrDefault(val => val.Value == name).Key;
        }
    }

    public class AddressContainerCollection : List<AddressContainer> { }
}