无法在样式设置器上设置TargetName属性，如何设置？ [英] TargetName property cannot be set on a Style Setter, so how is it set?
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问题描述
上周我一直在探索WPF，因此对我来说仍然是很新的。我正在做的事情之一是简单的动画。在这种情况下，笑脸会跳动。
I've spent this past week exploring WPF so it's still very new to me. One of the things I'm working on is simple animations. In this case a bouncing smiley face.
我的攻击计划是：
- 做个笑脸。我已经完成了。
- 在一个简单的对象上计算弹跳动画。我已经完成了。
- 提取该动画，以便可以在多个地方（笑脸的元素）使用它。我被困在这里。
- 将抽象的动画样式应用于笑脸的所有元素。
- Make a smiley face. I've done this.
- Work out the bouncing animation on a simple object. I've done this.
- Abstract that animation so it can be used in several places (the elements of the smiley face). I'm stuck here.
- Apply the abstracted animation style to all the elements of the smiley face.
在步骤2之后，我使用了以下XAML：
After step #2 I had the the following working XAML:
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WpfApplication1"
mc:Ignorable="d"
Title="Test Window" Height="350" Width="620">
<Grid>
<Canvas Margin="0,180,0,0">
<Ellipse Canvas.Left="10" Canvas.Top="10" Width="100" Height="100" Stroke="Blue" StrokeThickness="4" Fill="Aqua" />
<Ellipse Canvas.Left="30" Canvas.Top="12" Width="60" Height="30">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0.45,0" EndPoint="0.5, 0.9">
<GradientStop Offset="0.2" Color="DarkMagenta" />
<GradientStop Offset="0.7" Color="Transparent" />
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Canvas.Left="33" Canvas.Top="35" Width="20" Height="20" Stroke="Blue" StrokeThickness="3" Fill="White" />
<Ellipse Canvas.Left="40" Canvas.Top="43" Width="6" Height="5" Fill="Black" />
<Ellipse Canvas.Left="68" Canvas.Top="35" Width="20" Height="20" Stroke="Blue" StrokeThickness="3" Fill="White" />
<Ellipse Canvas.Left="75" Canvas.Top="43" Width="6" Height="5" Fill="Black" />
<Path Name="mouth" Stroke="Blue" StrokeThickness="4" Data="M 35,75 Q 55,90 80,75 " />
</Canvas>
<Grid Margin="100,5,0,0" Width="75" Height="300">
<Canvas>
<Ellipse Height="40" Width="40" x:Name="theBall" Canvas.Left="16">
<Ellipse.Fill>
<RadialGradientBrush GradientOrigin="0.75,0.25">
<GradientStop Color="Yellow" Offset="0.0" />
<GradientStop Color="Red" Offset="1.0" />
</RadialGradientBrush>
</Ellipse.Fill>
<Ellipse.RenderTransform>
<TransformGroup>
<ScaleTransform x:Name="aniSquash"/>
<TranslateTransform x:Name="aniBounce"/>
</TransformGroup>
</Ellipse.RenderTransform>
<Ellipse.Triggers>
<EventTrigger RoutedEvent="Loaded">
<BeginStoryboard>
<Storyboard SpeedRatio="2.0">
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniBounce" Storyboard.TargetProperty="Y" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="120" KeyTime="0:0:0"/>
<SplineDoubleKeyFrame Value="260" KeyTime="0:0:2.2" KeySpline="0, 0, 0.5, 0"/>
<LinearDoubleKeyFrame Value="260" KeyTime="0:0:2.25"/>
<SplineDoubleKeyFrame Value="120" KeyTime="0:0:4.5" KeySpline="0, 0, 0, 0.5"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniSquash" Storyboard.TargetProperty="ScaleX" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2"/>
<LinearDoubleKeyFrame Value="1.3" KeyTime="0:0:2.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.5"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniSquash" Storyboard.TargetProperty="ScaleY" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2"/>
<LinearDoubleKeyFrame Value="0.7" KeyTime="0:0:2.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.5"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Ellipse.Triggers>
</Ellipse>
<Rectangle Height="5" Canvas.Left="10" Canvas.Top="285" Width="55" Fill="Black"/>
</Canvas>
</Grid>
</Grid>
</Window>
在更改以上内容的同时，步骤3的XAML我引入了一个错误，我不是了解。这是更改后的XAML，不起作用：
While altering the above, working, XAML for step #3 I introduced an error I don't really understand. Here is the altered XAML that doesn't work:
<Window x:Class="MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:WpfApplication1"
mc:Ignorable="d"
Title="Test Window" Height="350" Width="620">
<Window.Resources>
<TransformGroup x:Key="aniBounceAndSquash">
<ScaleTransform x:Name="aniSquash"/>
<TranslateTransform x:Name="aniBounce"/>
</TransformGroup>
<Style x:Key="styleBounceAndSquash" TargetType="FrameworkElement">
<Setter Property="RenderTransform" Value="{StaticResource aniBounceAndSquash}" />
<Style.Triggers>
<EventTrigger RoutedEvent="Loaded">
<BeginStoryboard>
<Storyboard SpeedRatio="2.0">
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniBounce" Storyboard.TargetProperty="Y" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="120" KeyTime="0:0:0"/>
<SplineDoubleKeyFrame Value="260" KeyTime="0:0:2.2" KeySpline="0, 0, 0.5, 0"/>
<LinearDoubleKeyFrame Value="260" KeyTime="0:0:2.25"/>
<SplineDoubleKeyFrame Value="120" KeyTime="0:0:4.5" KeySpline="0, 0, 0, 0.5"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniSquash" Storyboard.TargetProperty="ScaleX" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2"/>
<LinearDoubleKeyFrame Value="1.3" KeyTime="0:0:2.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.5"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:4.5" Storyboard.TargetName="aniSquash" Storyboard.TargetProperty="ScaleY" RepeatBehavior="Forever">
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2"/>
<LinearDoubleKeyFrame Value="0.7" KeyTime="0:0:2.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.5"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Style.Triggers>
</Style>
</Window.Resources>
<Grid>
<Canvas Margin="0,180,0,0">
<Ellipse Canvas.Left="10" Canvas.Top="10" Width="100" Height="100" Stroke="Blue" StrokeThickness="4" Fill="Aqua" />
<Ellipse Canvas.Left="30" Canvas.Top="12" Width="60" Height="30">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0.45,0" EndPoint="0.5, 0.9">
<GradientStop Offset="0.2" Color="DarkMagenta" />
<GradientStop Offset="0.7" Color="Transparent" />
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Canvas.Left="33" Canvas.Top="35" Width="20" Height="20" Stroke="Blue" StrokeThickness="3" Fill="White" />
<Ellipse Canvas.Left="40" Canvas.Top="43" Width="6" Height="5" Fill="Black" />
<Ellipse Canvas.Left="68" Canvas.Top="35" Width="20" Height="20" Stroke="Blue" StrokeThickness="3" Fill="White" />
<Ellipse Canvas.Left="75" Canvas.Top="43" Width="6" Height="5" Fill="Black" />
<Path Name="mouth" Stroke="Blue" StrokeThickness="4" Data="M 35,75 Q 55,90 80,75 " />
</Canvas>
<Grid Margin="100,5,0,0" Width="75" Height="300">
<Canvas>
<Ellipse Height="40" Width="40" x:Name="theBall" Canvas.Left="16" Style="{StaticResource styleBounceAndSquash}">
<Ellipse.Fill>
<RadialGradientBrush GradientOrigin="0.75,0.25">
<GradientStop Color="Yellow" Offset="0.0" />
<GradientStop Color="Red" Offset="1.0" />
</RadialGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Rectangle Height="5" Canvas.Left="10" Canvas.Top="285" Width="55" Fill="Black"/>
</Canvas>
</Grid>
</Grid>
</Window>
错误无法在样式设置器上设置TargetName属性。第20行的位置79。
The error "TargetName property cannot be set on a Style Setter. Line 20 Position 79."
如果无法设置样式，该如何设置？
If I can't set it in the style how do I set it?
推荐答案
事实证明，您无法在 Style.Setter 中设置 Storyboard.TargetName 因为它是一种样式并且是抽象的。因此，不允许通过名称进行引用，因为没有汤匙。所以我放下 Storyboard.TargetName 并寻找另一种方式。
Well it turns out that you can't set Storyboard.TargetName in a Style.Setter because it's a style and is abstracted. Hence a reference via name is not allowed as "there is no spoon". So I dropped Storyboard.TargetName and looked for another way.
我确实在 Storyboard.TargetName 。由于我使用的是 TransformGroup ，因此花了更长的时间才能按结构引用对象，而MS文档并不是最友好的文档。终于，我明白了，这里是给有相同问题的其他人的。
I did find that in Storyboard.TargetProperty you can use the object structure, sort of like walking the DOM, to reference the object you want. In that way you bypass the need for Storyboard.TargetName. It took longer to work out referencing the object by structure because I was using a TransformGroup and MS docs are not the most friendly of docs. Finally, I got it and here it is for anyone else that has the same problem.
<Style x:Key="buttonSmiley" TargetType="{x:Type Button}">
<Style.Resources>
<Storyboard x:Key="OnVisibleStoryboard">
<DoubleAnimationUsingKeyFrames Duration="0:0:2.75" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[0].(TranslateTransform.Y)" >
<LinearDoubleKeyFrame Value="75" KeyTime="0:0:0"/>
<SplineDoubleKeyFrame Value="25" KeyTime="0:0:0.75" KeySpline="0, 0, 0.5, 0"/>
<LinearDoubleKeyFrame Value="-25" KeyTime="0:0:1.2"/>
<SplineDoubleKeyFrame Value="200" KeyTime="0:0:2.25" KeySpline="0, 0, 0, 0.5"/>
<LinearDoubleKeyFrame Value="175" KeyTime="0:0:2.4" />
<SplineDoubleKeyFrame Value="150" KeyTime="0:0:2.75" KeySpline="0, 0, 0, 0.5"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:5.5" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[1].(ScaleTransform.ScaleX)" >
<LinearDoubleKeyFrame Value="0.01" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:1.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.05"/>
<LinearDoubleKeyFrame Value="1.15" KeyTime="0:0:2.15"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.4"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.75"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Duration="0:0:5.5" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[1].(ScaleTransform.ScaleY)" >
<LinearDoubleKeyFrame Value="0.01" KeyTime="0:0:0"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:1.25"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.05"/>
<LinearDoubleKeyFrame Value="0.75" KeyTime="0:0:2.2"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.4"/>
<LinearDoubleKeyFrame Value="1" KeyTime="0:0:2.75"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</Style.Resources>
<Style.Triggers>
<Trigger Property="Visibility" Value="Visible">
<Trigger.EnterActions>
<RemoveStoryboard BeginStoryboardName="OnLoadStoryboard_BeginStoryboard"/>
<BeginStoryboard x:Name="OnVisibleStoryboard_BeginStoryboard" Storyboard="{StaticResource OnVisibleStoryboard}"/>
</Trigger.EnterActions>
</Trigger>
<EventTrigger RoutedEvent="Button.Loaded">
<RemoveStoryboard BeginStoryboardName="OnVisibleStoryboard_BeginStoryboard"/>
<BeginStoryboard x:Name="OnLoadStoryboard_BeginStoryboard" Storyboard="{StaticResource OnVisibleStoryboard}"/>
</EventTrigger>
</Style.Triggers>
<Setter Property="ContentTemplate">
<Setter.Value>
<DataTemplate>
<Canvas Margin="-35,-35,0,0">
<Ellipse Canvas.Left="10" Canvas.Top="10" Width="50" Height="50" Stroke="Blue" StrokeThickness="2" Fill="#FFD8CF15" />
<Ellipse Canvas.Left="18" Canvas.Top="12" Width="33" Height="15">
<Ellipse.Fill>
<LinearGradientBrush StartPoint="0.45,0" EndPoint="0.5, 0.9">
<GradientStop Offset="0.2" Color="DarkMagenta" />
<GradientStop Offset="0.7" Color="Transparent" />
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse Canvas.Left="17" Canvas.Top="25" Width="10" Height="10" Stroke="Blue" StrokeThickness="2" Fill="White" />
<Ellipse Canvas.Left="20" Canvas.Top="28" Width="3" Height="3" Fill="Black" />
<Ellipse Canvas.Left="34" Canvas.Top="25" Width="10" Height="10" Stroke="Blue" StrokeThickness="2" Fill="White" />
<Ellipse Canvas.Left="37" Canvas.Top="28" Width="3" Height="3" Fill="Black" />
<Path Name="mouth" Stroke="Blue" StrokeThickness="2" Data="M 20,43 Q 27,53 40,44" />
</Canvas>
</DataTemplate>
</Setter.Value>
</Setter>
<Setter Property="RenderTransform">
<Setter.Value>
<TransformGroup>
<TranslateTransform />
<ScaleTransform />
</TransformGroup>
</Setter.Value>
</Setter>
</Style>
当然，如果 Button，我会完全放弃样式。 本来可以允许正常触发，而不允许JUST事件触发，谢谢您让生活痛苦的MS，嗯，我很开心。因为我需要两者，所以我必须解决这个问题。
Of course I would have given up on the style altogether if Button.Triggers would have allowed normal triggers and not JUST event triggers in the collection, thank you MS for making life painful, er um I mean fun. Because I needed both I had to work this out.
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