我有以下简单的动画:
<Window x:Class="AnimationTest.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="350" Width="525">
<StackPanel Background="Black">
<TextBox Name="Box" >
</TextBox>
<TextBlock Text="{Binding Text, ElementName=Box, NotifyOnTargetUpdated=True}" Foreground="White" >
<TextBlock.Style>
<Style TargetType="TextBlock" >
<Style.Triggers>
<EventTrigger RoutedEvent="Binding.TargetUpdated">
<BeginStoryboard>
<Storyboard>
<ColorAnimation AutoReverse="True" To="#A933FF" Duration="0:0:1" Storyboard.TargetProperty="Foreground.Color" FillBehavior="Stop" IsCumulative="True" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</StackPanel>
</Window>
它只是在值更改时使 flash 成为一个值。如果您写一个字母,您会看到它正确闪烁到动画中设置的颜色并返回。但是,如果您单击几次,持续时间会更长(这是所需的行为),但它会变为原始颜色而不会淡出。为什么会发生这种情况以及如何避免?