Смена картинки по таймеру

 private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            System.Windows.Threading.DispatcherTimer timer = new System.Windows.Threading.DispatcherTimer();
 
            timer.Tick += new EventHandler(timerTick);
            timer.Interval = new TimeSpan(0, 0, 1);
            timer.Start();
        }
 
        private void timerTick(object sender, EventArgs e)
        {
            image2.Visibility = Visibility.Visible;
        }

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.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
 
namespace Animations
{
    /// <summary>
    /// Interaction logic for MainWindow.xaml
    /// </summary>
    public partial class MainWindow : Window
    {
        private BitmapImage[] images;
        private int counter = 0;
        public MainWindow()
        {
            InitializeComponent();
 
            images = new BitmapImage[3];
            images[0] = new BitmapImage(new Uri("/Animations;component/Images/1.png", UriKind.Relative));
            images[1] = new BitmapImage(new Uri("/Animations;component/Images/2.png", UriKind.Relative));
            images[2] = new BitmapImage(new Uri("/Animations;component/Images/3.png", UriKind.Relative));
            DispatcherTimer dT = new DispatcherTimer();
            dT.Interval = new TimeSpan(0,0,1);
            dT.Tick += new EventHandler(dT_Tick);
            dT.Start();
        }
 
        void dT_Tick(object sender, EventArgs e)
        {
            image1.Source = images[counter % images.Length];
            counter++;
        }
    }
}