禁用UWP社区工具包扩展器的扩展
我正在我的应用程序中使用。我希望能够禁用控件的扩展（因此，当满足某些条件时，单击时它不会扩展） 理想情况下，这将隐藏扩展器箭头或使其变为灰色，并阻止扩展发生 我可以分叉并进行必要的更改，但我想知道是否有更简单的方法来实现这一点 提前谢谢 理想情况下，这将隐藏扩展器箭头或使其变为灰色，并阻止扩展发生 对于您的需求，您只需为禁用UWP社区工具包扩展器的扩展,uwp,windows-community-toolkit,Uwp,Windows Community Toolkit,我正在我的应用程序中使用。我希望能够禁用控件的扩展（因此，当满足某些条件时，单击时它不会扩展） 理想情况下，这将隐藏扩展器箭头或使其变为灰色，并阻止扩展发生 我可以分叉并进行必要的更改，但我想知道是否有更简单的方法来实现这一点 提前谢谢 理想情况下，这将隐藏扩展器箭头或使其变为灰色，并阻止扩展发生 对于您的需求，您只需为扩展器编辑默认的HeaderToggleButtonStyle 从复制默认样式。将新动画添加到禁用状态，使扩展器禁用时箭头图标变为灰色 这是经过编辑的样式 <Style x
扩展器HeaderToggleButtonStyle禁用扩展器<Style x:Key="HeaderToggleButtonStyle" TargetType="ToggleButton">
<Setter Property="Background" Value="{ThemeResource SystemControlBackgroundChromeMediumLowBrush}" />
<Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
<Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundTransparentBrush}" />
<Setter Property="BorderThickness" Value="0" />
<Setter Property="Padding" Value="2,0,0,0" />
<Setter Property="Height" Value="40" />
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="VerticalAlignment" Value="Stretch" />
<Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
<Setter Property="FontWeight" Value="Normal" />
<Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
<Setter Property="UseSystemFocusVisuals" Value="True" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ToggleButton">
<Grid x:Name="RootGrid" Background="{TemplateBinding Background}">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition Width="*" />
</Grid.ColumnDefinitions>
<Rectangle
x:Name="HoverPanel"
Grid.ColumnSpan="2"
Fill="Transparent" />
<Slider
x:Name="ArrowRotation"
Maximum="180"
Minimum="-180"
Visibility="Collapsed"
Value="90" />
<FontIcon
x:Name="Arrow"
Margin="12"
FontFamily="Segoe MDL2 Assets"
FontSize="12"
Glyph=""
RenderTransformOrigin="0.5,0.5">
<FontIcon.RenderTransform>
<RotateTransform />
</FontIcon.RenderTransform>
</FontIcon>
<ContentPresenter
x:Name="ContentPresenter"
Grid.Column="1"
Margin="0,0,12,0"
Padding="{TemplateBinding Padding}"
HorizontalAlignment="{TemplateBinding HorizontalAlignment}"
VerticalAlignment="{TemplateBinding VerticalAlignment}"
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
AutomationProperties.AccessibilityView="Raw"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
ContentTransitions="{TemplateBinding ContentTransitions}"
Foreground="{TemplateBinding Foreground}"
RenderTransformOrigin="0.5,0.5" />
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="0.0"
Duration="0:0:0.1" />
</Storyboard>
</VisualState>
<VisualState x:Name="PointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundListLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="0.0"
Duration="0:0:0.1" />
</Storyboard>
</VisualState>
<VisualState x:Name="Pressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundListMediumBrush}" />
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="0.0"
Duration="0:0:0.1" />
<PointerDownThemeAnimation Storyboard.TargetName="RootGrid" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="0.0"
Duration="0:0:0.1" />
<!-- gray arrow -->
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Arrow" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="Gray" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Checked">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="{Binding ElementName=ArrowRotation, Path=Value}"
Duration="0:0:0.1" />
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentMediumBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="{Binding ElementName=ArrowRotation, Path=Value}"
Duration="0:0:0.1" />
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedPressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="{Binding ElementName=ArrowRotation, Path=Value}"
Duration="0:0:0.1" />
<PointerDownThemeAnimation Storyboard.TargetName="RootGrid" />
</Storyboard>
</VisualState>
<VisualState x:Name="CheckedDisabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Arrow" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation
BeginTime="0:0:0"
Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(UIElement.RenderTransform).(RotateTransform.Angle)"
To="{Binding ElementName=ArrowRotation, Path=Value}"
Duration="0:0:0.1" />
</Storyboard>
</VisualState>
<VisualState x:Name="Indeterminate">
<Storyboard>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
</Storyboard>
</VisualState>
<VisualState x:Name="IndeterminatePointerOver">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Arrow" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerUpThemeAnimation Storyboard.TargetName="RootGrid" />
</Storyboard>
</VisualState>
<VisualState x:Name="IndeterminatePressed">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseMediumLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Arrow" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
</ObjectAnimationUsingKeyFrames>
<PointerDownThemeAnimation Storyboard.TargetName="RootGrid" />
</Storyboard>
</VisualState>
<VisualState x:Name="IndeterminateDisabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="HoverPanel" Storyboard.TargetProperty="Fill">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="Arrow" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter" Storyboard.TargetProperty="Foreground">
<DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup x:Name="ExpandDirectionStates">
<VisualState x:Name="RightDirection" />
<VisualState x:Name="DownDirection" />
<VisualState x:Name="LeftDirection">
<VisualState.Setters>
<Setter Target="ArrowRotation.Value" Value="-90" />
</VisualState.Setters>
</VisualState>
<VisualState x:Name="UpDirection">
<VisualState.Setters>
<Setter Target="ArrowRotation.Value" Value="-90" />
</VisualState.Setters>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<controls:Expander HeaderStyle="{StaticResource HeaderToggleButtonStyle}"
x:Name="Expander2"
Margin="0"
VerticalAlignment="Top"
HorizontalContentAlignment="Stretch"
ExpandDirection="Down"
Header="This is the header - expander 2"
IsEnabled="False"
IsExpanded="False">
<Grid Height="256" Background="{ThemeResource SystemControlBackgroundBaseHighBrush}">
<TextBlock
HorizontalAlignment="Center"
VerticalAlignment="Center"
Text="This is the expanded content without a content overlay"
TextWrapping="Wrap" />
</Grid>
</controls:Expander>