尽管 StandardStyles.xaml-ResourceDictionary 的 AppBarButtonStyle 的注释指出它可以用于 Buttons 和 ToggleButtons，但它对于 ToggleButton 控件的行为并不可靠。
应用于 ToggleButton，缺少大纲，并且在某些情况下，未选中状态将呈现为已选中。此外，该样式引用了一个名为“BackgroundCheckedGlyph”的元素，该元素未定义并在 AppBar 中使用时会导致调试错误。
是否有人已经为 Buttons 和 ToggleButtons 找到或建立了一个工作样式？
RTM 中的 StandardStyles.xaml 和 ToggleButtons 显然存在一些问题。
虽然 HCL 试图解决这个问题是一个好的开始，但 HCL 自己承认仍然存在一些问题。
在 MS 修复此问题之前，我认为最好为 ToggleButtons 使用完全独立的样式。在这个 MS 论坛页面上有一个工作风格，我在下面复制了它 - 到目前为止，它似乎运行良好。
<Style x:Key="ToggleAppBarButtonStyle" TargetType="ToggleButton">
<Setter Property="Foreground" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
<Setter Property="VerticalAlignment" Value="Stretch"/>
<Setter Property="FontFamily" Value="Segoe UI Symbol"/>
<Setter Property="FontWeight" Value="Normal"/>
<Setter Property="FontSize" Value="20"/>
<Setter Property="AutomationProperties.ItemType" Value="App Bar ToggleButton"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Grid x:Name="RootGrid" Width="100" Background="Transparent">
<StackPanel VerticalAlignment="Top" Margin="0,12,0,11">
<Grid Width="40" Height="40" Margin="0,0,0,5" HorizontalAlignment="Center">
<TextBlock x:Name="BackgroundGlyph" Text="" FontFamily="Segoe UI Symbol" FontSize="53.333" Margin="-4,-19,0,0" Foreground="{StaticResource AppBarItemBackgroundThemeBrush}"/>
<TextBlock x:Name="OutlineGlyph" Text="" FontFamily="Segoe UI Symbol" FontSize="53.333" Margin="-4,-19,0,0"/>
<ContentPresenter x:Name="Content" HorizontalAlignment="Center" Margin="-1,-1,0,0" VerticalAlignment="Center"/>
</Grid>
<TextBlock
x:Name="TextLabel"
Text="{TemplateBinding AutomationProperties.Name}"
Foreground="{StaticResource AppBarItemForegroundThemeBrush}"
Margin="0,0,2,0"
FontSize="12"
TextAlignment="Center"
Width="88"
MaxHeight="32"
TextTrimming="WordEllipsis"
Style="{StaticResource BasicTextStyle}"/>
</StackPanel>
<Rectangle
x:Name="FocusVisualWhite"
IsHitTestVisible="False"
Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}"
StrokeEndLineCap="Square"
StrokeDashArray="1,1"
Opacity="0"
StrokeDashOffset="1.5"/>
<Rectangle
x:Name="FocusVisualBlack"
IsHitTestVisible="False"
Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}"
StrokeEndLineCap="Square"
StrokeDashArray="1,1"
Opacity="0"
StrokeDashOffset="0.5"/>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal"/>
<VisualState x:Name="PointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPointerOverBackgroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPointerOverForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed"/>
<VisualState x:Name="Disabled"/>
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPressedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPressedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPressed"/>
<VisualState x:Name="CheckedDisabled"/>
<VisualState x:Name="Indeterminate"/>
<VisualState x:Name="IndeterminatePointerOver"/>
<VisualState x:Name="IndeterminatePressed"/>
<VisualState x:Name="IndeterminateDisabled"/>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="FocusVisualWhite"
Storyboard.TargetProperty="Opacity"
To="1"
Duration="0"/>
<DoubleAnimation
Storyboard.TargetName="FocusVisualBlack"
Storyboard.TargetProperty="Opacity"
To="1"
Duration="0"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
<VisualState x:Name="PointerFocused" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
我发现如果我手动设置 ToggleButton 的 VisualState，那么样式就可以正常工作（在添加缺少的 TextBlock 之后）。不知道为什么这有效（或者为什么它一开始就不起作用......）
有关更多信息，请参阅此帖子。
这是我自己尝试修复样式的结果。它似乎有效（我在“Light”主题和“HighContrast”主题中查看过它。我发现了一些小缺点，但在我看来它比原来的更好。
如果我在这方面投入更多时间，我会发布改进的版本。如果您使用此样式并自行改进，请随时更改我的版本。
<Style x:Key="AppBarButtonStyle" TargetType="ButtonBase">
<Setter Property="Foreground" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
<Setter Property="VerticalAlignment" Value="Stretch"/>
<Setter Property="FontFamily" Value="Segoe UI Symbol"/>
<Setter Property="FontWeight" Value="Normal"/>
<Setter Property="FontSize" Value="20"/>
<Setter Property="AutomationProperties.ItemType" Value="App Bar Button"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ButtonBase">
<Grid x:Name="RootGrid" Width="100" Background="Transparent">
<StackPanel VerticalAlignment="Top" Margin="0,12,0,11">
<Grid Width="40" Height="40" Margin="0,0,0,5" HorizontalAlignment="Center">
<TextBlock x:Name="BackgroundGlyph" Text="" FontFamily="Segoe UI Symbol" FontSize="53.333" Margin="-4,-19,0,0" Foreground="{StaticResource AppBarItemBackgroundThemeBrush}"/>
<!-- The following TextBlock seemed to be missing in the original template -->
<TextBlock x:Name="BackgroundCheckedGlyph" Visibility="Collapsed" Text="" FontFamily="Segoe UI Symbol" FontSize="53.333" Margin="-4,-19,0,0" Foreground="{StaticResource AppBarItemForegroundThemeBrush}"/>
<TextBlock x:Name="OutlineGlyph" Text="" FontFamily="Segoe UI Symbol" FontSize="53.333" Margin="-4,-19,0,0"/>
<ContentPresenter x:Name="Content" HorizontalAlignment="Center" Margin="-1,-1,0,0" VerticalAlignment="Center"/>
</Grid>
<TextBlock
x:Name="TextLabel"
Text="{TemplateBinding AutomationProperties.Name}"
Foreground="{StaticResource AppBarItemForegroundThemeBrush}"
Margin="0,0,2,0"
FontSize="12"
TextAlignment="Center"
Width="88"
MaxHeight="32"
TextTrimming="WordEllipsis"
Style="{StaticResource BasicTextStyle}"/>
</StackPanel>
<Rectangle
x:Name="FocusVisualWhite"
IsHitTestVisible="False"
Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}"
StrokeEndLineCap="Square"
StrokeDashArray="1,1"
Opacity="0"
StrokeDashOffset="1.5"/>
<Rectangle
x:Name="FocusVisualBlack"
IsHitTestVisible="False"
Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}"
StrokeEndLineCap="Square"
StrokeDashArray="1,1"
Opacity="0"
StrokeDashOffset="0.5"/>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ApplicationViewStates">
<VisualState x:Name="FullScreenLandscape"/>
<VisualState x:Name="Filled"/>
<VisualState x:Name="FullScreenPortrait">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="Width">
<DiscreteObjectKeyFrame KeyTime="0" Value="60"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Snapped">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="RootGrid" Storyboard.TargetProperty="Width">
<DiscreteObjectKeyFrame KeyTime="0" Value="60"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<!-- The following animations are here, because I was not able to reset the Glyphs states in the Unchecked state.
I hope that this does not produces any sideeffects -->
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundCheckedGlyph" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Collapsed"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPointerOverBackgroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundCheckedGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPointerOverBackgroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPointerOverForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundCheckedGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPressedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="OutlineGlyph" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemDisabledForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemDisabledForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="TextLabel" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemDisabledForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="FocusStates">
<VisualState x:Name="Focused">
<Storyboard>
<DoubleAnimation
Storyboard.TargetName="FocusVisualWhite"
Storyboard.TargetProperty="Opacity"
To="1"
Duration="0"/>
<DoubleAnimation
Storyboard.TargetName="FocusVisualBlack"
Storyboard.TargetProperty="Opacity"
To="1"
Duration="0"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Unfocused" />
<VisualState x:Name="PointerFocused" />
</VisualStateGroup>
<VisualStateGroup x:Name="CheckStates">
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="BackgroundCheckedGlyph" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0" Value="Visible"/>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Content" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource AppBarItemPressedForegroundThemeBrush}"/>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Unchecked"><!-- This state seems to me as not working. Am I right? -->
</VisualState>
<VisualState x:Name="Indeterminate">
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>