gistfile1.txt

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using FantasyNewApp.Utilities;

namespace FantasyNewApp.Models
{
    public class Person : INotifyPropertyChanged
    {
        private string _FirstName;
        private string _MiddleName;
        private string _LastName;

        public string FirstName
        {
            get
            {
                return _FirstName;
            }
            set
            {
                if(_FirstName == value) return;

                _FirstName = value;
                PropertyChanged.Notify(() => FirstName);
                PropertyChanged.Notify(() => DisplayName);
            }
        }
        public string MiddleName
        {
            get
            {
                return _MiddleName;
            }
            set
            {
                if (_MiddleName == value) return;
                _MiddleName = value;
                PropertyChanged.Notify(() => MiddleName);
                PropertyChanged.Notify(()=>DisplayName);
            }
        }
        public string LastName
        {
            get
            {
                return _LastName;
            }
            set
            {
                if (_LastName == value) return;
                _LastName = value;
                PropertyChanged.Notify(() => LastName);
                PropertyChanged.Notify(() => DisplayName);
            }
        }
        public string DisplayName
        {
            get
            {
                return string.Format("{0} {1} {2}", FirstName, MiddleName, LastName);
            }
        }

        public event PropertyChangedEventHandler PropertyChanged;
    }
}