Wpf 如何使用数据触发器停止自定义故事板?
我有一个画布的故事板,我想在淋浴ROR属性更改后立即停止它Wpf 如何使用数据触发器停止自定义故事板?,wpf,xaml,animation,storyboard,datatrigger,Wpf,Xaml,Animation,Storyboard,Datatrigger,我有一个画布的故事板,我想在淋浴ROR属性更改后立即停止它 <UserControl.Resources> <Storyboard x:Key="LoaderAnimation" Name="LoaderAnimation" > <DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Rende
<UserControl.Resources>
<Storyboard x:Key="LoaderAnimation" Name="LoaderAnimation" >
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
Storyboard.TargetName="canvas"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="360"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
<Viewbox x:Name="LayoutRoot" HorizontalAlignment="Center" VerticalAlignment="Top" Grid.Row="0" Height="150" Width="250">
<Canvas Height="323" Width="308" RenderTransformOrigin="0.5,0.5" x:Name="canvas">
<Canvas.RenderTransform>
<RotateTransform/>
</Canvas.RenderTransform>
<Ellipse Fill="{Binding Foreground, ElementName=userControl}" Height="71" Canvas.Left="121" Canvas.Top="21" Width="69" Opacity="0.3"/>
<Ellipse Fill="{Binding Foreground, ElementName=userControl}" Height="71" Width="69" Canvas.Left="194" Canvas.Top="52" Opacity="0.4"/>
<Ellipse Fill="{Binding Foreground, ElementName=userControl}" Width="69" Height="71"
</Canvas>
</Viewbox>
<TextBlock Grid.Row="1" TextWrapping="Wrap" FontSize="20" Margin="0 20 0 0">
<TextBlock.Style>
<Style TargetType="TextBlock">
<Style.Triggers>
<DataTrigger Binding="{Binding ShowError}" Value="false">
<Setter Property="Text" Value="{loc:Translate LogIn.TestSpsConnection}" />
<Setter Property="Foreground" Value="Black" />
</DataTrigger>
<DataTrigger Binding="{Binding ShowError}" Value="true">
<Setter Property="Text" Value="{loc:Translate LogIn.FailSpsConnection}" />
<Setter Property="Foreground" Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</Grid>
尝试在画布上应用一个样式触发器,当“淋浴错误”变为真时停止情节提要,而不是从文本块执行该操作
例如:
<UserControl.Resources>
<Storyboard x:Key="LoaderAnimation" Name="LoaderAnimation" >
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
RepeatBehavior="Forever">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<EasingDoubleKeyFrame KeyTime="0:0:3" Value="360"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</UserControl.Resources>
...
<Canvas Height="323" Width="308" RenderTransformOrigin="0.5,0.5" x:Name="canvas">
...
<Canvas.Style>
<Style TargetType="Canvas">
<Style.Triggers>
<EventTrigger RoutedEvent="Loaded">
<EventTrigger.Actions>
<BeginStoryboard x:Name="beginStoryboard" Storyboard="{StaticResource LoaderAnimation}"/>
</EventTrigger.Actions>
</EventTrigger>
<DataTrigger Binding="{Binding ShowError}" Value="True">
<DataTrigger.EnterActions>
<StopStoryboard BeginStoryboardName="beginStoryboard"/>
</DataTrigger.EnterActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Canvas.Style>
</Canvas>
...
...
另外,请注意,我从您的资源中删除了Storyboard.TargetName,否则它在使用时违反了一些XAML规则。如果将其保留在那里,则会出现运行时错误