WPF DataGrid Binding With Enum and Child Collection

<Window x:Class="SOTC_DataGridExample.Window1" Name="This"
   xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
   xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
   xmlns:dg="http://schemas.microsoft.com/wpf/2008/toolkit"
   xmlns:sys="clr-namespace:System;assembly=mscorlib"  
   xmlns:local="clr-namespace:SOTC_DataGridExample" 
   Title="DataGrid Example" Height="300" Width="500">
    <Window.Resources>
        <ObjectDataProvider x:Key="myEnum" ObjectType="{x:Type sys:Enum}" MethodName="GetValues">
            <ObjectDataProvider.MethodParameters>
                <x:Type TypeName="local:GenderType"/>
            </ObjectDataProvider.MethodParameters>
        </ObjectDataProvider>
        <ObjectDataProvider x:Key="myContinentEnum" ObjectType="{x:Type sys:Enum}" MethodName="GetValues">
            <ObjectDataProvider.MethodParameters>
                <x:Type TypeName="local:Continent"/>
            </ObjectDataProvider.MethodParameters>
        </ObjectDataProvider>
    </Window.Resources>
    <Grid x:Name="dgRoot" DataContext="{Binding}">
        <Grid.RowDefinitions>
            <RowDefinition></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <dg:DataGrid x:Name="myGrid" ItemsSource="{Binding}" Grid.Row="0" Grid.Column="0" IsSynchronizedWithCurrentItem="True"
              Margin="5" AutoGenerateColumns="False" Width="365">
            <dg:DataGrid.Columns>
                <dg:DataGridTextColumn Binding="{Binding GameName}" Header="Game Name" />
                <dg:DataGridTextColumn Binding="{Binding Creator}" Header="Creator" />
                <dg:DataGridComboBoxColumn Header="Gender" ItemsSource="{Binding Source={StaticResource myEnum}}"
                                SelectedItemBinding="{Binding Gender}" />
                <dg:DataGridComboBoxColumn Header="Publisher" x:Name="_PublisherCombo"
                                SelectedItemBinding="{Binding Publisher}" />
                <dg:DataGridCheckBoxColumn Binding="{Binding OnXbox}" 
                                Header="On Xbox 360" />
                
            </dg:DataGrid.Columns>
        </dg:DataGrid>
        <dg:DataGrid x:Name="CountryGrid" Grid.Row="1" Grid.Column="0" IsSynchronizedWithCurrentItem="True"
                     ItemsSource="{Binding Path=CurrentItem.CityInfo}" AutoGenerateColumns="False" Width="195">
            <dg:DataGrid.Columns>
                <dg:DataGridTextColumn Binding="{Binding City}" Header="City" />
                <dg:DataGridTextColumn Binding="{Binding Country}" Header="Country" />
                <dg:DataGridComboBoxColumn Header="Continent" ItemsSource="{Binding Source={StaticResource myContinentEnum}}"
                                SelectedItemBinding="{Binding CountryIn}" />
                
            </dg:DataGrid.Columns>
        </dg:DataGrid>
    </Grid>
</Window>

Code Behind:

using System;
using System.Collections.Generic;
using System.Data;
using System.Windows;
using System.Collections.ObjectModel;

namespace SOTC_DataGridExample
{
    public enum GenderType { Male, Female };
    public enum Continent{NorthAmerica,Asia,Europe,Australia};

    public partial class Window1 : Window
    {
        private DataTable _GameData;

        public Window1()
        {
            List<GameData> _GameData = new List<GameData>();
            List<CityInfo> _cityInfo = new List<CityInfo>();
            _cityInfo.Add(new CityInfo() { City = "Mumbai", Country = "India", CountryIn = Continent.Asia });
            _cityInfo.Add(new CityInfo() { City = "London", Country = "UK", CountryIn = Continent.Europe });
            _cityInfo.Add(new CityInfo() { City = "Atlanta", Country = "USA", CountryIn = Continent.NorthAmerica });
            _cityInfo.Add(new CityInfo() { City = "Sydney", Country = "Australia", CountryIn = Continent.Australia });

            List<CityInfo> _cityInfo1 = new List<CityInfo>();
            _cityInfo1.Add(new CityInfo() { City = "Delhi", Country = "India", CountryIn = Continent.Asia });
            _cityInfo1.Add(new CityInfo() { City = "Leeds", Country = "UK", CountryIn = Continent.Europe });
            _cityInfo1.Add(new CityInfo() { City = "New York", Country = "USA", CountryIn = Continent.NorthAmerica });
            _cityInfo1.Add(new CityInfo() { City = "Melbourne", Country = "Australia", CountryIn = Continent.Australia });

            GameData gamedata;
            _GameData.Add(new GameData() {CityInfo=_cityInfo,GameName = "World Of Warcraft", Creator = "Blizzard", Publisher = "Blizzard", OnXbox = false, Gender = GenderType.Male });
            _GameData.Add(new GameData() { CityInfo = _cityInfo1, GameName = "Halo 3", Creator = "Bungie", Publisher = "Microsoft", OnXbox = true, Gender = GenderType.Female });
            _GameData.Add(new GameData() {CityInfo=_cityInfo, GameName = "Gears Of War", Creator = "Epic", Publisher = "Microsoft", OnXbox = true, Gender = GenderType.Male });
            _GameData.Add(new GameData() {CityInfo=_cityInfo, GameName = "World Of Warcraft", Creator = "Blizzard", Publisher = "Blizzard", OnXbox = false, Gender = GenderType.Male });

            /*_GameData = new DataTable();
            _GameData.Columns.Add(new DataColumn("Game Name", typeof(string)));
            _GameData.Columns.Add(new DataColumn("Creator", typeof(string)));
            _GameData.Columns.Add(new DataColumn("Publisher", typeof(string)));
            _GameData.Columns.Add(new DataColumn("On Xbox", typeof(bool)));
            _GameData.Columns.Add(new DataColumn("Gender", typeof(GenderType)));
            
            var row = _GameData.NewRow();
            _GameData.Rows.Add(row);
            row["Game Name"] = "World Of Warcraft";
            row["Creator"] = "Blizzard";
            row["Publisher"] = "Blizzard";
            row["On Xbox"] = false;
            row["Gender"] = GenderType.Male;
            row = _GameData.NewRow();
            _GameData.Rows.Add(row);
            row["Game Name"] = "Halo 3";
            row["Creator"] = "Bungie";
            row["Publisher"] = "Microsoft";
            row["On Xbox"] = true;
            row["Gender"] = GenderType.Female;
            row = _GameData.NewRow();
            _GameData.Rows.Add(row);
            row["Game Name"] = "Gears Of War";
            row["Creator"] = "Epic";
            row["Publisher"] = "Microsoft";
            row["On Xbox"] = true;
            row["Gender"] = GenderType.Male;
            _GameData.RowChanged += GameDataRowChanged;
            _GameData.RowDeleted += GameDataRowChanged;*/

            InitializeComponent();

            _PublisherCombo.ItemsSource = new List<string>() { "Activision", "Ubisoft",
                    "Microsoft", "Blizzard", "Nintendo", "Electronic Arts", 
                    "Take-Two Interactive" };
            dgRoot.DataContext = _GameData;
            //myGrid.DataContext = _GameData;
            //ItemsSource="{Binding ElementName=This, Path=GameData}" 
        }

        private void GameDataRowChanged(object sender, DataRowChangeEventArgs e)
        {
            Console.WriteLine("----Row Changed----");
            Console.WriteLine("Action: " + e.Action);
            if (e.Action != DataRowAction.Delete)
            {
                Console.Write("Values: ");
                foreach (var val in e.Row.ItemArray)
                { Console.Write(val + ", "); }
                Console.WriteLine();
            }
            Console.WriteLine("-------------------");
        }

        public DataTable GameData
        { get { return _GameData; } }
        
    }
    public class GameData
    { 
         public string GameName{get;set;}
        public string Creator{get;set;}
        public string Publisher{get;set;}
        public bool OnXbox{get;set;}
        public GenderType Gender{get;set;}
        public List<CityInfo> CityInfo { get; set; }
          
    }
    public class CityInfo
    {
        public string Country { get; set; }
        public string City { get; set; }
        public Continent CountryIn { get; set; }
    }
  
    

}