Combining Animations in Code in Silverlight

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace CanvasExpt
{
    public partial class MainPage : UserControl
    {
        //http://localhost:2042/CanvasExptTestPage.aspx
        public Dictionary<string, UserControl> pageCache;
        UserControl curPage;
        public delegate void _ONCLOSE_();
        _ONCLOSE_ onClose;
        public MainPage()
        {
            InitializeComponent();
            pageCache = new Dictionary<string, UserControl>();
        }
        public void NavigateToCanvasPage()
        {
            string strPage = "CanvasExpt.CanvasPage";
            if (curPage != null)
            {
                if (onClose != null)
                {
                    onClose();
                }
                LayoutRoot.Children.Remove(curPage);
            }
            CanvasPage cnvPage;
            if (pageCache.ContainsKey(strPage))
                cnvPage = (CanvasPage)pageCache[strPage];
            else
            {
                cnvPage = new CanvasPage();
                pageCache.Add(strPage, cnvPage);
            }
            onClose += cnvPage.onClose;
            LayoutRoot.Children.Add(cnvPage);
            curPage = cnvPage;
            Grid.SetRow(cnvPage, 2);
        }
        public void NavigateToBounceAnimationPage()
        {
            string strPage = "CanvasExpt.StringVibrationPage";
            if (curPage != null)
            {
                if (onClose != null)
                {
                    onClose();
                }
                LayoutRoot.Children.Remove(curPage);
            }
            BounceAnimationPage stringVibrationPage;
            if (pageCache.ContainsKey(strPage))
                stringVibrationPage = (BounceAnimationPage)pageCache[strPage];
            else
            {
                stringVibrationPage = new BounceAnimationPage();
                pageCache.Add(strPage, stringVibrationPage);
            }
            onClose += stringVibrationPage.onClose;
            LayoutRoot.Children.Add(stringVibrationPage);
            curPage = stringVibrationPage;
            Grid.SetRow(stringVibrationPage, 2);
        }
        public void NavigateToCircleAnimationPage()
        {
            string strPage = "CanvasExpt.CircleAnimations";
            if (curPage != null)
            {
                if (onClose != null)
                {
                    onClose();
                }
                LayoutRoot.Children.Remove(curPage);
            }
            CircleAnimations circleAnimationPage;
            if (pageCache.ContainsKey(strPage))
                circleAnimationPage = (CircleAnimations)pageCache[strPage];
            else
            {
                circleAnimationPage = new CircleAnimations();
                pageCache.Add(strPage, circleAnimationPage);
            }
            onClose += circleAnimationPage.onClose;
            LayoutRoot.Children.Add(circleAnimationPage);
            curPage = circleAnimationPage;
            Grid.SetRow(circleAnimationPage, 2);
        }
        public void NavigateToArcAnimationPage()
        {
            string strPage = "CanvasExpt.ArcAnimationPage";
            if (curPage != null)
            {
                if (onClose != null)
                {
                    onClose();
                }
                LayoutRoot.Children.Remove(curPage);
            }
            ArcAnimationPage circleAnimationPage;
            if (pageCache.ContainsKey(strPage))
                circleAnimationPage = (ArcAnimationPage)pageCache[strPage];
            else
            {
                circleAnimationPage = new ArcAnimationPage();
                pageCache.Add(strPage, circleAnimationPage);
            }
            onClose += circleAnimationPage.onClose;
            LayoutRoot.Children.Add(circleAnimationPage);
            curPage = circleAnimationPage;
            Grid.SetRow(circleAnimationPage, 2);
        }
        private void button_Click_ShowCanvasPage(object sender, RoutedEventArgs e)
        {
            NavigateToCanvasPage();
        }

        private void ShowBounceAnimationPage_Click(object sender, RoutedEventArgs e)
        {
            NavigateToBounceAnimationPage();
        }

        private void ShowCircleAnimationPage_Click(object sender, RoutedEventArgs e)
        {
            NavigateToCircleAnimationPage();
        }

        private void ShowArcAnimationPage_Click(object sender, RoutedEventArgs e)
        {
            NavigateToArcAnimationPage();
        }

    }
}