能帮忙看下EventTrigger为什么没有触发么？
我定义了以下简单CustomerControl:

XML code

<ResourceDictionary    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"    xmlns:local="clr-namespace:StoryboardTest">        <Style TargetType="{x:Type local:CustomControl1}">        <Setter Property="Template">            <Setter.Value>                <ControlTemplate TargetType="{x:Type local:CustomControl1}">                    <Viewbox>                        <Grid Background="LightBlue" x:Name="theGrid">                            <Rectangle x:Name="faceRect" Width="50" Height="50" >                                <Rectangle.RenderTransform>                                    <ScaleTransform CenterX="25" CenterY="25" ScaleX="1" ScaleY="1"/>                                </Rectangle.RenderTransform>                            </Rectangle>                        </Grid>                    </Viewbox>                                        <ControlTemplate.Triggers>                        <EventTrigger RoutedEvent="Rectangle.MouseEnter" SourceName="faceRect">                            <BeginStoryboard>                                <Storyboard>                                    <DoubleAnimation Storyboard.TargetName="faceRect"                                                     Storyboard.TargetProperty="Width"                                                     To="100"/>                                    <DoubleAnimation Storyboard.TargetName="faceRect"                                                     Storyboard.TargetProperty="Height"                                                     To="100"/>                                </Storyboard>                            </BeginStoryboard>                        </EventTrigger>                        <EventTrigger RoutedEvent="Rectangle.MouseLeave" SourceName="faceRect">                            <BeginStoryboard>                                <Storyboard>                                    <DoubleAnimation Storyboard.TargetName="faceRect"                                                     Storyboard.TargetProperty="Width"                                                     To="50"/>                                    <DoubleAnimation Storyboard.TargetName="faceRect"                                                     Storyboard.TargetProperty="Height"                                                     To="50"/>                                </Storyboard>                            </BeginStoryboard>                        </EventTrigger>                    </ControlTemplate.Triggers>                </ControlTemplate>            </Setter.Value>        </Setter>    </Style></ResourceDictionary>

想实现鼠标进入或出控件中的Rectangle时候，分别播放动画，但是，运行却没有反应，如果将EventTrigger的RoutedEvent更改为：<EventTrigger RoutedEvent="Grid.MouseEnter">以及<EventTrigger RoutedEvent="Grid.MouseLeave">则可以触发，请问这是为什么？多谢

[解决办法]
有个Fill属性吧，反正就是背景色，如果全透明的话，就捕获不到鼠标的。

你试试，我也没测试过