'[Unknown]' 属性未指向路径 '(0).(1)[3].(2)' 中的 DependencyObject

【问题标题】：'[Unknown]' property does not point to a DependencyObject in path '(0).(1)[3].(2)''[Unknown]' 属性未指向路径 '(0).(1)[3].(2)' 中的 DependencyObject
【发布时间】：2012-10-21 13:09:42
【问题描述】：

如何解决这个由以下样式引起的异常？

        <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>

我将此样式应用于网格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，但没有出现此异常。

【问题讨论】：

  • 如果我将您的代码粘贴到 kaxaml 中，一切正常...

标签： c# wpf xaml styles togglebutton


【解决方案1】：

正如约翰所说，错误就在这一行

<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">

它无法在 switch 中迭代和查找属性，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>

【讨论】：

  • 这为我解决了问题。使用属性的名称而不是深入到子项中，阻止它崩溃
【解决方案2】： 
<DoubleAnimationUsingKeyFrames Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Storyboard.TargetName="Switch">

这是有问题的行 where '(0).(1)3' where:

  • （0）是（UIElement.RenderTransform），
  • (1) 是 (TransforGroup.Children)，
  • [3] 是 [3]，并且
  • (2) 是 (TranslateTransform.Y)

没有多大帮助，但我遇到了类似的问题。我想如果你评论 那条线，问题会消失，但可能不起作用。也许有人拥有更多 遇到此类问题的经验可以在这里补充。

【讨论】：

    【解决方案3】：

    下面是你的固定风格：

    <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>

    【讨论】：

    • 这是我添加到您的 XAML 中的帽子
    • 这是我添加到您的 XAML 中的内容：
    • 嗨 Lana，感谢您回答这个问题，您能否简要总结一下您在样式中修复了什么？此外，您可以编辑问题和 cmets，而不是发布新问题。
    • 您的答案下方有任何edit 链接。请描述您为获得此代码所做的工作。
    【解决方案4】：

    我认为 TransformGroup 的 Children 集合更有可能没有 4 个元素（还），所以(TransforGroup.Children)[3] 给出了一个例外。确保在设置 Children 集合之前不会运行转换。

    【讨论】：

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