如何在 WPF 中设置滑块控件的样式? [英] How to style the slider control in WPF?
本文介绍了如何在 WPF 中设置滑块控件的样式?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我想设置滑块控件的样式，以便将可拖动拇指的高度设置为 8 像素.
I want to style the slider control so that the height of the draggable thumb is set to 8 pixels.
在 WPF 中执行此操作的最简单方法是什么?
What is the simplest way to do this in WPF?
<Slider>
<Slider.Style>
<!-- which xaml here? -->
</Slider.style>
</Slider>
推荐答案
滑块控件有许多部分 Thumb、RepeatButtons 和一个 Track.它是具有命名元素(如 PART_Track)的控件之一，由代码隐藏引用以使其正常工作.一个好的起点是使用 Blend 来帮助您.
The Slider Control has many parts Thumb, RepeatButtons and a Track. It is one of those controls that have named elements, like PART_Track, referenced by the code-behind for it to work correctly. A good starting point is to use Blend to help you out.
开始一个新项目(或创建一个新窗口).在 XAML 窗口中添加以下内容:
Start a new project (or create a new window). In the XAML window add the following:
<ScrollBar/>
然后在 Blend 的设计窗口中右键单击控件并选择编辑控件部件(模板)\编辑副本...".这将对标准控制模板进行逆向工程.然后可以对其进行编辑.
Then in design window of Blend right-click on the control and select "Edit control parts (Template)\Edit a Copy...". This will reverse engineer the standard control template. This can then be edited.
混合输出是这样的:-
<LinearGradientBrush x:Key="VerticalScrollBarPageButtonNormal" EndPoint="1, 0" StartPoint="0, 0">
<GradientStop Color="#EEEDE5" Offset="0"/>
<GradientStop Color="#EEEDE5" Offset="0.05"/>
<GradientStop Color="#F3F1EC" Offset="0.06"/>
<GradientStop Color="#FEFEFE" Offset="0.94"/>
<GradientStop Color="#EEEDE5" Offset="0.95"/>
<GradientStop Color="#EEEDE5" Offset="1"/>
</LinearGradientBrush>
<Style x:Key="ScrollBarButton" TargetType="{x:Type RepeatButton}">
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Microsoft_Windows_Themes:ScrollChrome SnapsToDevicePixels="true" x:Name="Chrome" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="{TemplateBinding Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph}" ThemeColor="Metallic"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="VerticalScrollBarPageButtonPressed" EndPoint="1, 0" StartPoint="0, 0">
<GradientStop Color="#D7D5C2" Offset="0"/>
<GradientStop Color="#D7D5C2" Offset="0.05"/>
<GradientStop Color="#E3DED3" Offset="0.06"/>
<GradientStop Color="#FDFDF6" Offset="0.94"/>
<GradientStop Color="#D7D5C2" Offset="0.95"/>
<GradientStop Color="#D7D5C2" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="VerticalScrollBarPageButtonDisabled" EndPoint="1, 0" StartPoint="0, 0">
<GradientStop Color="#EEEDE5" Offset="0"/>
<GradientStop Color="#EEEDE5" Offset="0.05"/>
<GradientStop Color="#F3F1EC" Offset="0.06"/>
<GradientStop Color="#FEFEFE" Offset="0.94"/>
<GradientStop Color="#EEEDE5" Offset="0.95"/>
<GradientStop Color="#EEEDE5" Offset="1"/>
</LinearGradientBrush>
<Style x:Key="VerticalScrollBarPageButton" TargetType="{x:Type RepeatButton}">
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Rectangle x:Name="Bg" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" Fill="{TemplateBinding Background}"/>
<ControlTemplate.Triggers>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Fill" TargetName="Bg" Value="{StaticResource VerticalScrollBarPageButtonPressed}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Fill" TargetName="Bg" Value="{StaticResource VerticalScrollBarPageButtonDisabled}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ScrollBarThumb" TargetType="{x:Type Thumb}">
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Thumb}">
<Microsoft_Windows_Themes:ScrollChrome SnapsToDevicePixels="true" x:Name="Chrome" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsDragging}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="{TemplateBinding Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph}" ThemeColor="Metallic"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<LinearGradientBrush x:Key="HorizontalScrollBarPageButtonNormal" EndPoint="0, 1" StartPoint="0, 0">
<GradientStop Color="#EEEDE5" Offset="0"/>
<GradientStop Color="#EEEDE5" Offset="0.05"/>
<GradientStop Color="#F3F1EC" Offset="0.06"/>
<GradientStop Color="#FEFEFE" Offset="0.94"/>
<GradientStop Color="#EEEDE5" Offset="0.95"/>
<GradientStop Color="#EEEDE5" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalScrollBarPageButtonPressed" EndPoint="0, 1" StartPoint="0, 0">
<GradientStop Color="#D7D5C2" Offset="0"/>
<GradientStop Color="#D7D5C2" Offset="0.05"/>
<GradientStop Color="#E3DED3" Offset="0.06"/>
<GradientStop Color="#FDFDF6" Offset="0.94"/>
<GradientStop Color="#D7D5C2" Offset="0.95"/>
<GradientStop Color="#D7D5C2" Offset="1"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="HorizontalScrollBarPageButtonDisabled" EndPoint="0, 1" StartPoint="0, 0">
<GradientStop Color="#EEEDE5" Offset="0"/>
<GradientStop Color="#EEEDE5" Offset="0.05"/>
<GradientStop Color="#F3F1EC" Offset="0.06"/>
<GradientStop Color="#FEFEFE" Offset="0.94"/>
<GradientStop Color="#EEEDE5" Offset="0.95"/>
<GradientStop Color="#EEEDE5" Offset="1"/>
</LinearGradientBrush>
<Style x:Key="HorizontalScrollBarPageButton" TargetType="{x:Type RepeatButton}">
<Setter Property="OverridesDefaultStyle" Value="true"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Focusable" Value="false"/>
<Setter Property="IsTabStop" Value="false"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type RepeatButton}">
<Rectangle x:Name="Bg" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" Fill="{TemplateBinding Background}"/>
<ControlTemplate.Triggers>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Fill" TargetName="Bg" Value="{StaticResource HorizontalScrollBarPageButtonPressed}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Fill" TargetName="Bg" Value="{StaticResource HorizontalScrollBarPageButtonDisabled}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="ScrollBarStyle1" TargetType="{x:Type ScrollBar}">
<Setter Property="Stylus.IsPressAndHoldEnabled" Value="false"/>
<Setter Property="Stylus.IsFlicksEnabled" Value="false"/>
<Setter Property="Background" Value="{StaticResource VerticalScrollBarPageButtonNormal}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="Width" Value="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}"/>
<Setter Property="MinWidth" Value="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ScrollBar}">
<Grid SnapsToDevicePixels="true" Background="{TemplateBinding Background}">
<Grid.RowDefinitions>
<RowDefinition MaxHeight="{DynamicResource {x:Static SystemParameters.VerticalScrollBarButtonHeightKey}}"/>
<RowDefinition Height="0.00001*"/>
<RowDefinition MaxHeight="{DynamicResource {x:Static SystemParameters.VerticalScrollBarButtonHeightKey}}"/>
</Grid.RowDefinitions>
<RepeatButton Style="{StaticResource ScrollBarButton}" Command="{x:Static ScrollBar.LineUpCommand}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="UpArrow"/>
<Track x:Name="PART_Track" Grid.Row="1" IsDirectionReversed="true">
<Track.Thumb>
<Thumb Style="{StaticResource ScrollBarThumb}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="VerticalGripper"/>
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton Style="{StaticResource VerticalScrollBarPageButton}" Command="{x:Static ScrollBar.PageDownCommand}"/>
</Track.IncreaseRepeatButton>
<Track.DecreaseRepeatButton>
<RepeatButton Style="{StaticResource VerticalScrollBarPageButton}" Command="{x:Static ScrollBar.PageUpCommand}"/>
</Track.DecreaseRepeatButton>
</Track>
<RepeatButton Style="{StaticResource ScrollBarButton}" Command="{x:Static ScrollBar.LineDownCommand}" Grid.Row="2" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="DownArrow"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="Orientation" Value="Horizontal">
<Setter Property="Width" Value="Auto"/>
<Setter Property="MinWidth" Value="0"/>
<Setter Property="Background" Value="{StaticResource HorizontalScrollBarPageButtonNormal}"/>
<Setter Property="Height" Value="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarHeightKey}}"/>
<Setter Property="MinHeight" Value="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarHeightKey}}"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type ScrollBar}">
<Grid SnapsToDevicePixels="true" Background="{TemplateBinding Background}">
<Grid.ColumnDefinitions>
<ColumnDefinition MaxWidth="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarButtonWidthKey}}"/>
<ColumnDefinition Width="0.00001*"/>
<ColumnDefinition MaxWidth="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarButtonWidthKey}}"/>
</Grid.ColumnDefinitions>
<RepeatButton Style="{StaticResource ScrollBarButton}" Command="{x:Static ScrollBar.LineLeftCommand}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="LeftArrow"/>
<Track x:Name="PART_Track" Grid.Column="1">
<Track.Thumb>
<Thumb Style="{StaticResource ScrollBarThumb}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="HorizontalGripper"/>
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton Style="{StaticResource HorizontalScrollBarPageButton}" Command="{x:Static ScrollBar.PageRightCommand}"/>
</Track.IncreaseRepeatButton>
<Track.DecreaseRepeatButton>
<RepeatButton Style="{StaticResource HorizontalScrollBarPageButton}" Command="{x:Static ScrollBar.PageLeftCommand}"/>
</Track.DecreaseRepeatButton>
</Track>
<RepeatButton Style="{StaticResource ScrollBarButton}" Command="{x:Static ScrollBar.LineRightCommand}" Grid.Column="2" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="RightArrow"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Trigger>
</Style.Triggers>
</Style>
用于此的命名空间是这样的(添加到文件顶部):-
The namespace used for this was this (add to top of file):-
xmlns:Microsoft_Windows_Themes="clr-namespace:Microsoft.Windows.Themes;assembly=PresentationFramework.Luna"
然后，您可以明显地将生成的样式更改为您喜欢的内容
You can then obviously alter the generated style to your heart's content
您需要以编程方式找到嵌入在控件中的滚动条，或者通过更改样式定义将样式应用于范围内的所有滚动条，因此:-
You would need to either programmatically find the scrollbar embedded in the control or apply the style to all scrollbars in the scope by altering the style definition, so:-
<Style x:Key="ScrollBarStyle1" TargetType="{x:Type ScrollBar}">
...
</Style>
变成
<Style TargetType="{x:Type ScrollBar}">
...
</Style>
这样它就会应用于样式定义的区域内的所有滚动条.
So that it will be applied to all scroll bars in the region defined by the style.
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