sl 簡單 樣式 動畫

 <UserControl.Resources>
        <Style TargetType="TextBox"
               x:Key="Prompt">
            <Setter Property="VerticalAlignment"
                    Value="Bottom"/>
            <Setter Property="HorizontalAlignment"
                    Value="Right"/>
            <Setter Property="Margin"
                    Value="5"/>
            <Setter Property="FontFamily"
                    Value="Georgia"/>
            <Setter Property="FontSize"
                    Value="14"/>
        </Style>
        <Storyboard x:Name="DoFlip">
            <DoubleAnimationUsingKeyFrames BeginTime="00:00:00"
                                           Storyboard.TargetName="PanelProjection"
                                           Storyboard.TargetProperty="RotationX">
                <SplineDoubleKeyFrame KeyTime="00:00:00"
                                      Value="0"/>
                <SplineDoubleKeyFrame KeyTime="00:00:01"
                                      Value="90"/>
            </DoubleAnimationUsingKeyFrames>
        </Storyboard>
    </UserControl.Resources>

    <StackPanel x:Name="Form" Background="LightGray"
                Width="300" Margin="20">
        <StackPanel.Projection>
            <PlaneProjection x:Name="PanelProjection"
                             RotationX="0"
                             RotationY="0"
                             RotationZ="0"/>
        </StackPanel.Projection>
    </StackPanel>