如何修复由后续样式引起的此异常？
<Style x:Key="OnOffSwitchToggleButton" TargetType="{x:Type ToggleButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Grid Margin="0,0,0,-0.033">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.456*"/>
<ColumnDefinition Width="0.544*"/>
</Grid.ColumnDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0" Value="0.083"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="path1">
<EasingColorKeyFrame KeyTime="0" Value="White"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Opacity)" Storyboard.TargetName="path">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed"/>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="path">
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#FF39B54A"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Stroke).(SolidColorBrush.Color)" Storyboard.TargetName="path">
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#FF319D40"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextElement.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="label">
<EasingColorKeyFrame KeyTime="0" Value="#00999999"/>
<DiscreteColorKeyFrame KeyTime="0:0:0.2" Value="#0039B54A"/>
<EasingColorKeyFrame KeyTime="0:0:0.3" Value="White"/>
</ColorAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(ContentControl.Content)" Storyboard.TargetName="label">
<DiscreteObjectKeyFrame KeyTime="0:0:0.2" Value="ON"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.HorizontalAlignment)" Storyboard.TargetName="Switch">
<DiscreteObjectKeyFrame KeyTime="0:0:0.2" Value="{x:Static HorizontalAlignment.Left}"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="39.965"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="label">
<DiscreteDoubleKeyFrame KeyTime="0:0:0.2" Value="-19.224"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="label">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<DiscreteDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextElement.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="label">
<EasingColorKeyFrame KeyTime="0" Value="#00999999"/>
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#00999999"/>
<EasingColorKeyFrame KeyTime="0:0:0.3" Value="#FF999999"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Indeterminate"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Canvas x:Name="_switch" UseLayoutRounding="False" Height="30" Width="70" d:LayoutOverrides="VerticalMargin" Grid.ColumnSpan="2">
<Canvas x:Name="Background" Height="30" Canvas.Left="0" Canvas.Top="0" Width="70" RenderTransformOrigin="0.5,0.5">
<Canvas.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Canvas.RenderTransform>
<Path x:Name="path" Height="30" Canvas.Left="0" Canvas.Top="0" Width="70" Data="F1M55.0161,-0.966799999999999L14.9831,-0.966799999999999C6.7081,-0.966799999999999,0.00010000000000332,5.7412,0.00010000000000332,14.0162C0.00010000000000332,22.2922,6.7081,29.0002,14.9831,29.0002L55.0161,29.0002C63.2911,29.0002,70.0001,22.2922,70.0001,14.0162C70.0001,5.7412,63.2911,-0.966799999999999,55.0161,-0.966799999999999" Fill="#FFEDEDED" Stretch="Fill" Stroke="#FFCCCCCC">
<Path.Effect>
<DropShadowEffect ShadowDepth="0" Color="#FF00ADEF" Opacity="0"/>
</Path.Effect>
</Path>
</Canvas>
<Grid x:Name="Switch" Height="22" Canvas.Left="4.815" Canvas.Top="3.568" Width="22" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<Grid.Effect>
<DropShadowEffect BlurRadius="3" ShadowDepth="0" Opacity="0.5"/>
</Grid.Effect>
<Path x:Name="path1" Data="F1M14.9614,27.0166C7.7934,27.0166,1.9614,21.1846,1.9614,14.0166C1.9614,6.8486,7.7934,1.0166,14.9614,1.0166C22.1294,1.0166,27.9614,6.8486,27.9614,14.0166C27.9614,21.1846,22.1294,27.0166,14.9614,27.0166" Height="22" Stretch="Fill" Width="22" Margin="0" Fill="White"/>
</Grid>
</Canvas>
<Label x:Name="label" Content="OFF" Grid.Column="1" Margin="-2.506,2,0,0" HorizontalAlignment="Left" Padding="0" VerticalAlignment="Center" FontFamily="Avenir 45" FontSize="14.667" Foreground="#FF999999" RenderTransformOrigin="0.5,0.5">
<Label.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Label.RenderTransform>
</Label>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="HorizontalAlignment" Value="Left"/>
</Style>
我将此样式应用于Grid单元格内的切换按钮：
<ToggleButton Grid.Column="1" IsChecked="{Binding Path=ObjectStatus}" Style="{StaticResource ResourceKey=OnOffSwitchToggleButton}" Margin="5,0,0,0"/>
我在devexpress GridControl中有另一个切换按钮，但不会出现此异常。
答案 0 :(得分：6)
正如约翰所说错误在这一行
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">
它无法迭代并在switch中查找属性，因此解决方案是给变换命名，然后直接引用变换
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(TranslateTransform.Y)" Storyboard.TargetName="SwitchTranslate">
和
<Grid x:Name="Switch" Height="22" Canvas.Left="4.815" Canvas.Top="3.568" Width="22" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform x:Name="SwitchTranslate"/>
</TransformGroup>
答案 1 :(得分：0)
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">
这是违规行，其中'（0）。（1）3'其中：
没有多大帮助，但我遇到了类似的问题。我想如果你发表评论 这一行，问题将消失，但可能无法奏效。也许有人有更多 这种问题的经验可以在这里说明。
答案 2 :(得分：0)
以下是您的固定风格：
<Style x:Key="OnOffSwitchToggleButton" TargetType="{x:Type ToggleButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ToggleButton}">
<Grid Margin="0,0,0,-0.033">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="0.456*"/>
<ColumnDefinition Width="0.544*"/>
</Grid.ColumnDefinitions>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0" Value="0.083"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="path1">
<EasingColorKeyFrame KeyTime="0" Value="White"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="MouseOver">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.Effect).(DropShadowEffect.Opacity)" Storyboard.TargetName="path">
<EasingDoubleKeyFrame KeyTime="0" Value="1"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed"/>
<VisualState x:Name="Disabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Fill).(SolidColorBrush.Color)" Storyboard.TargetName="path">
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#FF39B54A"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(Shape.Stroke).(SolidColorBrush.Color)" Storyboard.TargetName="path">
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#FF319D40"/>
</ColorAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextElement.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="label">
<EasingColorKeyFrame KeyTime="0" Value="#00999999"/>
<DiscreteColorKeyFrame KeyTime="0:0:0.2" Value="#0039B54A"/>
<EasingColorKeyFrame KeyTime="0:0:0.3" Value="White"/>
</ColorAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(ContentControl.Content)" Storyboard.TargetName="label">
<DiscreteObjectKeyFrame KeyTime="0:0:0.2" Value="ON"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="(FrameworkElement.HorizontalAlignment)" Storyboard.TargetName="Switch">
<DiscreteObjectKeyFrame KeyTime="0:0:0.2" Value="{x:Static HorizontalAlignment.Left}"/>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="39.965"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="label">
<DiscreteDoubleKeyFrame KeyTime="0:0:0.2" Value="-19.224"/>
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked">
<Storyboard>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="Switch">
<EasingDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Storyboard.TargetName="label">
<EasingDoubleKeyFrame KeyTime="0" Value="0"/>
<DiscreteDoubleKeyFrame KeyTime="0:0:0.2" Value="0"/>
</DoubleAnimationUsingKeyFrames>
<ColorAnimationUsingKeyFrames Storyboard.TargetProperty="(TextElement.Foreground).(SolidColorBrush.Color)" Storyboard.TargetName="label">
<EasingColorKeyFrame KeyTime="0" Value="#00999999"/>
<EasingColorKeyFrame KeyTime="0:0:0.2" Value="#00999999"/>
<EasingColorKeyFrame KeyTime="0:0:0.3" Value="#FF999999"/>
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Indeterminate"/>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Canvas RenderTransformOrigin="0.5,0.5" x:Name="_switch" UseLayoutRounding="False" Height="30" Width="70" Grid.ColumnSpan="2">
<Canvas.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Canvas.RenderTransform>
<Canvas x:Name="Background" Height="30" Canvas.Left="0" Canvas.Top="0" Width="70" RenderTransformOrigin="0.5,0.5">
<Canvas.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Canvas.RenderTransform>
<Path x:Name="path" Height="30" Canvas.Left="0" Canvas.Top="0" Width="70" Data="F1M55.0161,-0.966799999999999L14.9831,-0.966799999999999C6.7081,-0.966799999999999,0.00010000000000332,5.7412,0.00010000000000332,14.0162C0.00010000000000332,22.2922,6.7081,29.0002,14.9831,29.0002L55.0161,29.0002C63.2911,29.0002,70.0001,22.2922,70.0001,14.0162C70.0001,5.7412,63.2911,-0.966799999999999,55.0161,-0.966799999999999" Fill="#FFEDEDED" Stretch="Fill" Stroke="#FFCCCCCC">
<Path.Effect>
<DropShadowEffect ShadowDepth="0" Color="#FF00ADEF" Opacity="0"/>
</Path.Effect>
</Path>
</Canvas>
<Grid x:Name="Switch" Height="22" Canvas.Left="4.815" Canvas.Top="3.568" Width="22" RenderTransformOrigin="0.5,0.5">
<Grid.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Grid.RenderTransform>
<Grid.Effect>
<DropShadowEffect BlurRadius="3" ShadowDepth="0" Opacity="0.5"/>
</Grid.Effect>
<Path x:Name="path1" Data="F1M14.9614,27.0166C7.7934,27.0166,1.9614,21.1846,1.9614,14.0166C1.9614,6.8486,7.7934,1.0166,14.9614,1.0166C22.1294,1.0166,27.9614,6.8486,27.9614,14.0166C27.9614,21.1846,22.1294,27.0166,14.9614,27.0166" Height="22" Stretch="Fill" Width="22" Margin="0" Fill="White"/>
</Grid>
</Canvas>
<Label x:Name="label" Content="OFF" Grid.Column="1" Margin="-2.506,2,0,0" HorizontalAlignment="Left" Padding="0" VerticalAlignment="Center" FontFamily="Avenir 45" FontSize="14.667" Foreground="#FF999999" RenderTransformOrigin="0.5,0.5">
<Label.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform/>
<TranslateTransform/>
</TransformGroup>
</Label.RenderTransform>
</Label>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Setter Property="HorizontalAlignment" Value="Left"/>
</Style>
答案 3 :(得分：0)
我认为TransformGroup的Children集合更可能没有4个元素，所以(TransforGroup.Children)[3]给出了异常。确保在设置Children集合之前未运行转换。