Animation with code


   
  
<Window x:Class="SimpleCodeAnimation.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="SimpleCodeAnimation" Height="300" Width="300">
    <Grid>
      <Ellipse Name="myEllipse" Fill="Red" Height="100" Width="10" />
    </Grid>
</Window>

//File:Window.xaml.cs
using System;
using System.Collections.Generic;
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;
using System.Windows.Media.Animation;


namespace SimpleCodeAnimation
{
    public partial class Window1 : System.Windows.Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        protected override void OnMouseDown(MouseButtonEventArgs e)
        {
            if (e.LeftButton == MouseButtonState.Pressed)
            {
                DoubleAnimation animate = new DoubleAnimation();
                animate.To = 300;
                animate.Duration = new Duration(TimeSpan.FromSeconds(5));
                animate.RepeatBehavior = RepeatBehavior.Forever;
                myEllipse.BeginAnimation(Ellipse.WidthProperty, animate);
            }
            else
            {
                DoubleAnimation animate = new DoubleAnimation();
                animate.By = 200;
                animate.Duration = new Duration(TimeSpan.FromSeconds(5));
                myEllipse.BeginAnimation(Ellipse.WidthProperty, animate);
            }
        }
    }
}