VS2010创建的WPF浏览器程序运行时浏览器就停止工作了求指导

我用的WIN7操作系统（旗舰版），浏览器是用IE9。VS2010创建的WPF浏览器程序运行时浏览器就停止工作了，代码没有错误，请各位高手指导下。
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300"
Title="Web">


Storyboard.TargetProperty=
"(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)"
RepeatBehavior="Forever">


Storyboard.TargetProperty=
"(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)"
RepeatBehavior="Forever">


Storyboard.TargetProperty=
"(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)"
RepeatBehavior="Forever">


Storyboard.TargetProperty=
"(UIElement.RenderTransform).(TransformGroup.Children)[0].(RotateTransform.Angle)"
RepeatBehavior="Forever">






















HorizontalAlignment="Left" VerticalAlignment="Top" Width="150">

        <Ellipse.Fill>
            <RadialGradientBrush>
                <GradientStop Color="#FF000000" Offset="1" />
                <GradientStop Color="#FFFFFFFF" Offset="0.306" />
            </RadialGradientBrush>
        </Ellipse.Fill>
    </Ellipse>
    <Ellipse Margin="15,85,0,0" Name="ellipse1" Stroke="{x:Null}" Height="80"
                 HorizontalAlignment="Left" VerticalAlignment="Top" Width="120"
                Fill="Red" Opacity="0.5" RenderTransformOrigin="0.92,0.5">

        <Ellipse.RenderTransform>
            <TransformGroup>
                <RotateTransform Angle="0" />
            </TransformGroup>
        </Ellipse.RenderTransform>
    </Ellipse>
    <Ellipse Margin="85,15,0,0" Name="ellipse2" Stroke="{x:Null}" Height="120"
                 HorizontalAlignment="Left" VerticalAlignment="Top" Width="80"
                Fill="Blue" Opacity="0.5" RenderTransformOrigin="0.5,0.92">

        <Ellipse.RenderTransform>
            <TransformGroup>
                <RotateTransform Angle="0" />
            </TransformGroup>
        </Ellipse.RenderTransform>
    </Ellipse>
    <Ellipse Margin="115,85,0,0" Name="ellipse3" Stroke="{x:Null}" Height="80"
                 HorizontalAlignment="Left" VerticalAlignment="Top" Width="120"
                Fill="Yellow" Opacity="0.5" RenderTransformOrigin="0.08,0.5">

        <Ellipse.RenderTransform>
            <TransformGroup>
                <RotateTransform Angle="0" />
            </TransformGroup>
        </Ellipse.RenderTransform>
    </Ellipse>
    <Ellipse Margin="85,115,0,0" Name="ellipse4" Stroke="{x:Null}" Height="80"
                 HorizontalAlignment="Left" VerticalAlignment="Top" Width="120"
                Fill="Green" Opacity="0.5" RenderTransformOrigin="0.5,0.08">
        <Ellipse.RenderTransform>
            <TransformGroup>
                <RotateTransform Angle="0" />
            </TransformGroup>
        </Ellipse.RenderTransform>
    </Ellipse>
    <Button Height="23" HorizontalAlignment="Left" Margin="20,0,0,56"
            Name="goButton" VerticalAlignment="Bottom" Width="75" Content="go"/>
    <Button Height="23" HorizontalAlignment="Right" Margin="0,0,21,56"
            Name="stopButton" VerticalAlignment="Bottom" Width="75" Content="stop"/>
    <Button Height="23" HorizontalAlignment="Left" Margin="85,0,86,16"
            Name="toggleButton" VerticalAlignment="Bottom" Width="75" Content="Toggle" Click="toggleButton_Click" />
</Grid>

以上这是Page1.Xaml的代码

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.Media.Animation;

namespace FirstWFPWed
{
///
/// Page1.xaml 的交互逻辑
///
public partial class Page1 : Page
{
public Page1()
{
InitializeComponent();
}

    private void toggleButton_Click(object sender, RoutedEventArgs e)
    {
        Storyboard SpinStoryBoard = Resources["Spin"] as Storyboard;
        if (SpinStoryBoard != null)
        {
            if (SpinStoryBoard.GetIsPaused(this))
            {
                SpinStoryBoard.Resume(this);
            }
            else
            {
                SpinStoryBoard.Pause(this);
            }
        }
    }
}

以上这是.cs 的代码请各位高手指导下。

不知道你这个问题是否已经解决, 如果还没有解决的话:

• 这篇文章讲的很详细，请看：VS2015通过代码方式创建WPF应用程序

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