BounceBall - XNA Farseer Magic

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace LevelEditor
{
    /// <summary>
    /// Interaction logic for LevelData.xaml
    /// </summary>
    public partial class LevelData : Window
    {
        public delegate void SaveLevel(Level lvl);
        public SaveLevel OnSaveLevel;

        private Level lvlData;

        public LevelData()
        {
            InitializeComponent();
            lvlData = new Level();
            lvlData.Height = 480;
            this.DataContext = lvlData;

            //Backgrounds
            cboBakcground.ItemsSource = Enum.GetValues(typeof(BackgroundType));
            cboBakcground.SelectedIndex = 0;
        }
        public LevelData(Level lvlData)
            : this()
        {
            this.DataContext = lvlData;
            this.lvlData = lvlData;
            this.lblTitle.Text = "EDIT LEVEL";
        }

        private void btnSave_Click(object sender, RoutedEventArgs e)
        {
            lvlData.BGType = (BackgroundType)Enum.Parse(typeof(BackgroundType), cboBakcground.SelectedItem.ToString());
            OnSaveLevel(lvlData);
            this.Close();
        }

        private void btnCancel_Click(object sender, RoutedEventArgs e)
        {
            this.Close();
        }

        private void txtWidth_LostFocus(object sender, RoutedEventArgs e)
        {
            int Columns = 0;
            if (Int32.TryParse(txtWidth.Text.Trim(), out Columns))
            {
                lblColumns.Text = ((int)(Columns / 32)).ToString();
                txtWidth.Text = (((int)(Columns / 32)) * 32).ToString();
            }
        }

        private void cboBakcground_SelectionChanged(object sender, SelectionChangedEventArgs e)
        {
            lvlData.BGType = (BackgroundType)Enum.Parse(typeof(BackgroundType), cboBakcground.SelectedItem.ToString());
        }
    }
}