WIndow初始动画

XAML版本的：
 
<Window x:Class="StartAnimation.MainWindow"
         xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
         xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
         AllowsTransparency="True" WindowStyle="None"
         Title="MainWindow" Height="350" Width="525" RenderTransformOrigin=".5,.5">
   <Window.RenderTransform>
     <ScaleTransform x:Name="scale" />
   </Window.RenderTransform>
   <Window.Triggers>
     <EventTrigger  RoutedEvent="Window.Loaded">
       <BeginStoryboard>
         <Storyboard>
           <DoubleAnimation Storyboard.TargetProperty="ScaleX"
                           Storyboard.TargetName="scale" From="0" To="1"
                            Duration="00:00:01"
                            FillBehavior="HoldEnd"
                            AccelerationRatio=".5" />
           <DoubleAnimation Storyboard.TargetProperty="ScaleY"
                           Storyboard.TargetName="scale" From="0" To="1"
                            Duration="00:00:01"
                            FillBehavior="HoldEnd"
                            AccelerationRatio=".5" />
         </Storyboard>
       </BeginStoryboard>
     </EventTrigger>
   </Window.Triggers>
   <Border CornerRadius="6"    >
     <Border.Background>
       <RadialGradientBrush Center=".5,.5" ColorInterpolationMode="ScRgbLinearInterpolation" >
         <GradientStop Color="Green" Offset=".2"/>
         <GradientStop Color="LightGreen" Offset="1"/>
       </RadialGradientBrush>
     </Border.Background>
   </Border>
 </Window>
 
CS代码版本的：
 
    void MainWindow_Loaded(object sender, RoutedEventArgs e)
         {
             ScaleTransform transform = new ScaleTransform() { };
             this.RenderTransform = transform;
             this.RenderTransformOrigin = new Point(.5, .5);
             DoubleAnimation animtion = new DoubleAnimation()
             {
                 From = 0,
                 To = 1,
                 Duration = TimeSpan.FromSeconds(.5),
                 FillBehavior = FillBehavior.HoldEnd,
                 AccelerationRatio = .5
 
            };
             transform.BeginAnimation(ScaleTransform.ScaleXProperty, animtion);
             transform.BeginAnimation(ScaleTransform.ScaleYProperty, animtion);
         }