Extending the WPF Calendar Control

using System.Collections.Generic;
using System.IO;
using System.Reflection;
using System.Windows;
using System;

namespace FsCalendarDemo
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            LoadCalendar();
        }

        /// <summary>
        /// Loads highlighted dates from a text file into a FsCalendar control.
        /// </summary>
        private void LoadCalendar()
        {
            // Get folder containing this app
            var path = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location);
            var n = path.LastIndexOf(@"\bin");
            var appFolderPath = path.Remove(n);

            var fileName = String.Format(@"{0}\Holidays.txt", appFolderPath);

            using (var reader = new StreamReader(fileName))
            {
                string line;
                while ((line = reader.ReadLine()) != null)
                {
                    // Parse line into data and tool tip
                    var s = line.Split(';');
                    var dateString = s[0];
                    var toolTip = s[1];

                    // Create DateTime object for date
                    var d = dateString.Split('/');
                    var date = new DateTime(DateTime.Now.Year, Convert.ToInt32(d[0]), Convert.ToInt32(d[1]));

                    // Add item to Calendar control's highlighted dates
                    DemoCalendar.HighlightedDates.Add(date, toolTip);
                }
            }
        }
    }
}