我想让 TextBlock 像这样
But,
aTextBlock.BeginAnimation(Button.MarginProperty, myDoubleAnimation);
得到这个错误
“System.Windows.Media.Animation.DoubleAnimation”不能用于为“System.Windows.Thickness”类型的“Margin”属性设置动画。
我在 Xaml 中进行了测试并得到相同的错误：
<Border CornerRadius="8" Background="Red" Margin="352,173,214,368">
<TextBlock x:Name="TestB"
Text="{Binding ElementName=MTxt,Path=Text,NotifyOnSourceUpdated=True}"
Margin="0,0,0,0"
HorizontalAlignment="Center"
Foreground="White"
FontWeight="Bold"
FontSize="16">
<TextBlock.Triggers>
<EventTrigger RoutedEvent="TextBlock.Loaded">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="TestB"
Storyboard.TargetProperty="(TextBlock.Margin)"
To="2"
Duration="0:0:1" AutoReverse="True"
RepeatBehavior="2" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBlock.Triggers>
</TextBlock>
</Border>
你有什么想法？
你需要使用厚度动画 http://msdn.microsoft.com/en-us/library/system.windows.media.animation.thicknessanimation%28v=vs.110%29.aspx为了这。DoubleAnimation用于属性Double type.
<TextBlock.Triggers>
<EventTrigger RoutedEvent="TextBlock.Loaded">
<BeginStoryboard>
<Storyboard>
<ThicknessAnimation
Storyboard.TargetName="TestB"
Storyboard.TargetProperty="(TextBlock.Margin)"
To="2"
Duration="0:0:1" AutoReverse="True"
RepeatBehavior="2" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</TextBlock.Triggers>
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