能帮忙看下EventTrigger为什么没有触发么？

Question

我定义了以下简单CustomerControl:<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

Answer 1

没写全，改为：
<EventTrigger RoutedEvent="Grid.MouseEnter" SourceName="theGrid">
以及
<EventTrigger RoutedEvent="Grid.MouseLeave" SourceName="theGrid">
或者改为：
<EventTrigger RoutedEvent="Mouse.MouseEnter" SourceName="theGrid">
以及
<EventTrigger RoutedEvent="Mouse.MouseLeave" SourceName="theGrid">
均可，只要是SourceName="faceRect"就不行，事件就好像触发不了了，请帮忙看下，非常感谢您的帮助！

Answer 2

Rectangle 的Background 设置为 "#01000000" 试试

Answer 3

呵呵，谢谢您的回复，这两天问的问题都无人理会，只有你帮忙回了，真感谢。
Rectangle好像没有Background属性吧？

Answer 4

assky124:另外之前那个问题不小心结了没给您分，真抱歉，我给了你一封私信，有空帮忙看下，这个问题还需要大家帮忙啊，谢谢了

Answer 5

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

Answer 6

的确是因为没有Fill的关系，非常感谢