简单的滑块样式

Question

有没有一种简单的方法可以让滑块看起来像一个网格分割器？ （基本上是将滑块中的拇指更改为一条线）我正在尝试创建“重叠”效果以允许用户显示两个相似图像的区域。 （这是this问题的后续）。

Answer 1

您可以在 Blend 中相当轻松地修改模板。只需在 Blend 中添加一个 Slider，右键单击，选择 Edit Template/Edit Current 即可看到模板的所有元素。假设更新 Horizo​​ntalTemplate Grid（当您的 Slider 处于水平方向时使用）就足够了，您需要调整 Grid RowDefinitions 的大小并修改 Horizo​​ntalThumb 大小，然后可能将 Horizo​​ntalTrackRect 和 Horizo​​ntalDecreaseRect 的填充画笔更改为透明。这是快速更新的结果：

<Page
    x:Class="App131.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:App131"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">
    <Page.Resources>
        <Style x:Key="SliderStyle1" TargetType="Slider">
            <Setter Property="Background" Value="{StaticResource SliderTrackBackgroundThemeBrush}"/>
            <Setter Property="BorderBrush" Value="{StaticResource SliderBorderThemeBrush}"/>
            <Setter Property="BorderThickness" Value="{StaticResource SliderBorderThemeThickness}"/>
            <Setter Property="Foreground" Value="{StaticResource SliderTrackDecreaseBackgroundThemeBrush}"/>
            <Setter Property="ManipulationMode" Value="None"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Slider">
                        <Grid Margin="{TemplateBinding Padding}">
                            <Grid.Resources>
                                <Style x:Key="SliderThumbStyle" TargetType="Thumb">
                                    <Setter Property="BorderThickness" Value="1"/>
                                    <Setter Property="BorderBrush" Value="{StaticResource SliderThumbBorderThemeBrush}"/>
                                    <Setter Property="Background" Value="{StaticResource SliderThumbBackgroundThemeBrush}"/>
                                    <Setter Property="Template">
                                        <Setter.Value>
                                            <ControlTemplate TargetType="Thumb">
                                                <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}"/>
                                            </ControlTemplate>
                                        </Setter.Value>
                                    </Setter>
                                </Style>
                            </Grid.Resources>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal"/>
                                    <VisualState x:Name="Pressed">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalDecreaseRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackDecreasePressedBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalTrackRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackPressedBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPressedBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPressedBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPressedBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPressedBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Stroke" Storyboard.TargetName="HorizontalBorder">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderDisabledBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Stroke" Storyboard.TargetName="VerticalBorder">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderDisabledBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalDecreaseRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackDecreaseDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalTrackRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbDisabledBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="TopTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkOutsideDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="HorizontalInlineTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkInlineDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="BottomTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkOutsideDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="LeftTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkOutsideDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalInlineTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkInlineDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="RightTickBar">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTickMarkOutsideDisabledForegroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="PointerOver">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalDecreaseRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackDecreasePointerOverBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Fill" Storyboard.TargetName="VerticalTrackRect">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderTrackPointerOverBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPointerOverBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="HorizontalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPointerOverBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPointerOverBackgroundThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="VerticalThumb">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{StaticResource SliderThumbPointerOverBorderThemeBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="FocusStates">
                                    <VisualState x:Name="Focused">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualWhiteHorizontal"/>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualBlackHorizontal"/>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualWhiteVertical"/>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisualBlackVertical"/>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Unfocused"/>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Grid x:Name="HorizontalTemplate" Background="Transparent">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="Auto"/>
                                    <ColumnDefinition Width="Auto"/>
                                    <ColumnDefinition Width="*"/>
                                </Grid.ColumnDefinitions>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="0"/>
                                    <RowDefinition/>
                                    <RowDefinition Height="0"/>
                                </Grid.RowDefinitions>
                                <Rectangle x:Name="HorizontalTrackRect" Grid.ColumnSpan="3" Grid.Row="1" Fill="Transparent"/>
                                <Rectangle x:Name="HorizontalDecreaseRect" Grid.Row="1" Fill="Transparent"/>
                                <TickBar x:Name="TopTickBar" Grid.ColumnSpan="3" Fill="{StaticResource SliderTickmarkOutsideBackgroundThemeBrush}" Height="{StaticResource SliderOutsideTickBarThemeHeight}" Margin="0,0,0,2" Visibility="Collapsed" VerticalAlignment="Bottom"/>
                                <TickBar x:Name="HorizontalInlineTickBar" Grid.ColumnSpan="3" Fill="{StaticResource SliderTickMarkInlineBackgroundThemeBrush}" Height="{StaticResource SliderTrackThemeHeight}" Grid.Row="1" Visibility="Collapsed"/>
                                <TickBar x:Name="BottomTickBar" Grid.ColumnSpan="3" Fill="{StaticResource SliderTickmarkOutsideBackgroundThemeBrush}" Height="{StaticResource SliderOutsideTickBarThemeHeight}" Margin="0,2,0,0" Grid.Row="2" Visibility="Collapsed" VerticalAlignment="Top"/>
                                <Rectangle x:Name="HorizontalBorder" Grid.ColumnSpan="3" Grid.Row="1" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="{TemplateBinding BorderThickness}"/>
                                <Thumb x:Name="HorizontalThumb" Background="{StaticResource SliderThumbBackgroundThemeBrush}" Grid.Column="1" DataContext="{TemplateBinding Value}" Grid.Row="1" Style="{StaticResource SliderThumbStyle}" Width="{StaticResource SliderTrackThemeHeight}"/>
                                <Rectangle x:Name="FocusVisualWhiteHorizontal" Grid.ColumnSpan="3" IsHitTestVisible="False" Opacity="0" Grid.RowSpan="3" StrokeDashOffset="1.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}" StrokeDashArray="1,1"/>
                                <Rectangle x:Name="FocusVisualBlackHorizontal" Grid.ColumnSpan="3" IsHitTestVisible="False" Opacity="0" Grid.RowSpan="3" StrokeDashOffset="0.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}" StrokeDashArray="1,1"/>
                            </Grid>
                            <Grid x:Name="VerticalTemplate" Background="Transparent" Visibility="Collapsed">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="17"/>
                                    <ColumnDefinition Width="Auto"/>
                                    <ColumnDefinition Width="17"/>
                                </Grid.ColumnDefinitions>
                                <Grid.RowDefinitions>
                                    <RowDefinition Height="*"/>
                                    <RowDefinition Height="Auto"/>
                                    <RowDefinition Height="Auto"/>
                                </Grid.RowDefinitions>
                                <Rectangle x:Name="VerticalTrackRect" Grid.Column="1" Fill="{TemplateBinding Background}" Grid.RowSpan="3"/>
                                <Rectangle x:Name="VerticalDecreaseRect" Grid.Column="1" Fill="{TemplateBinding Foreground}" Grid.Row="2"/>
                                <TickBar x:Name="LeftTickBar" Fill="{StaticResource SliderTickmarkOutsideBackgroundThemeBrush}" HorizontalAlignment="Right" Margin="0,0,2,0" Grid.RowSpan="3" Visibility="Collapsed" Width="{StaticResource SliderOutsideTickBarThemeHeight}"/>
                                <TickBar x:Name="VerticalInlineTickBar" Grid.Column="1" Fill="{StaticResource SliderTickMarkInlineBackgroundThemeBrush}" Grid.RowSpan="3" Visibility="Collapsed" Width="{StaticResource SliderTrackThemeHeight}"/>
                                <TickBar x:Name="RightTickBar" Grid.Column="2" Fill="{StaticResource SliderTickmarkOutsideBackgroundThemeBrush}" HorizontalAlignment="Left" Margin="2,0,0,0" Grid.RowSpan="3" Visibility="Collapsed" Width="{StaticResource SliderOutsideTickBarThemeHeight}"/>
                                <Rectangle x:Name="VerticalBorder" Grid.Column="1" Grid.RowSpan="3" Stroke="{TemplateBinding BorderBrush}" StrokeThickness="{TemplateBinding BorderThickness}"/>
                                <Thumb x:Name="VerticalThumb" Background="{StaticResource SliderThumbBackgroundThemeBrush}" Grid.Column="1" DataContext="{TemplateBinding Value}" Height="{StaticResource SliderTrackThemeHeight}" Grid.Row="1" Style="{StaticResource SliderThumbStyle}" Width="{StaticResource SliderTrackThemeHeight}"/>
                                <Rectangle x:Name="FocusVisualWhiteVertical" Grid.ColumnSpan="3" IsHitTestVisible="False" Opacity="0" Grid.RowSpan="3" StrokeDashOffset="1.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualWhiteStrokeThemeBrush}" StrokeDashArray="1,1"/>
                                <Rectangle x:Name="FocusVisualBlackVertical" Grid.ColumnSpan="3" IsHitTestVisible="False" Opacity="0" Grid.RowSpan="3" StrokeDashOffset="0.5" StrokeEndLineCap="Square" Stroke="{StaticResource FocusVisualBlackStrokeThemeBrush}" StrokeDashArray="1,1"/>
                            </Grid>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Page.Resources>

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Slider Margin="0" Style="{StaticResource SliderStyle1}"/>

    </Grid>
</Page>

Answer 2

不幸的是，除非该特定控件的默认模板定义了您可以覆盖的部分，否则无法在不替换整个模板的情况下对控件进行模板化。如here 所述，有支持模板控件的工具。

Answer 3

请注意，如果您不想使用 Blend，但仍需要对控件模板进行轻微修改，Windows 8 默认模板存储在 Program Files (x86)\Windows Kits\8.0\Include\WinRT\Xaml \Design\Generic.xaml 。

当我需要编辑滑块模板时，我只需将文件中的默认模板复制/粘贴到项目中的资源文件中，然后应用我的修改。