如果故事板动画在椭圆1上运行并更改不透明度，我是否可以在其不透明度为某个值时触发，并在椭圆2上启动故事板动画，从而在其上开始淡入？
<UniformGrid Columns="2">
<Ellipse Width="25" Height="25" Name="ellipse1">
<Ellipse.Triggers>
<Trigger Property="Opacity" Value=".7">
do something here to start a opacity fade in on ellipse2
</Trigger>
</Ellipse.Triggers>
</Ellipse>
<Ellipse Width="25" Height="25" Name="ellipse2">
</Ellipse>
</UniformGrid>
您可以使用DataTrigger在省略号2中观察省略号1：
<Ellipse Width="25" Height="25" Name="ellipse2">
<Ellipse.Style>
<Style TargetType="{x:Type Ellipse}">
<Style.Triggers>
<DataTrigger Binding="{Binding Opacity, ElementName=ellipse1}" Value="0.5">
<DataTrigger.EnterActions>
<BeginStoryboard>
<!-- Storyboard for ellipse 2 here -->
</BeginStoryboard>
</DataTrigger.EnterActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Ellipse.Style>
</Ellipse>
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