一、实现对ScrollViewer样式的自定义主要包括：

1、滚动条宽度设置

2、滚动条颜色

3、滚动条圆角

4、滚动条拉动时的效果mouseover

二、实现效果：

三、实现方法

1、创建资源字典（ ResourceDictionary）文件

由于style代码比较多，之间在控件文件中加载style比较混乱，也不利于其它窗口复用，这里单独创建了ScrollViewDictionary.xaml文件代码如下：

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"> <ControlTemplate x:Key="MyScrollViewer" TargetType="{x:Type ScrollViewer}"> <!--View区域背景色--> <Grid x:Name="Grid" Background="{TemplateBinding Background}"> <Grid.ColumnDefinitions> <ColumnDefinition Width="*"/> <ColumnDefinition Width="Auto"/> </Grid.ColumnDefinitions> <Grid.RowDefinitions> <RowDefinition Height="*"/> <RowDefinition Height="Auto"/> </Grid.RowDefinitions> <Rectangle x:Name="Corner" Grid.Column="1" Fill="White" Grid.Row="1"/> <ScrollContentPresenter x:Name="PART_ScrollContentPresenter" CanContentScroll="{TemplateBinding CanContentScroll}" CanHorizontallyScroll="False" CanVerticallyScroll="False" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Grid.Column="0" Margin="{TemplateBinding Padding}" Grid.Row="0"/> <ScrollBar x:Name="PART_VerticalScrollBar" AutomationProperties.AutomationId="VerticalScrollBar" Cursor="Arrow" Grid.Column="1" Maximum="{TemplateBinding ScrollableHeight}" Minimum="0" Grid.Row="0" Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}" Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" ViewportSize="{TemplateBinding ViewportHeight}" Style="{DynamicResource MyScrollBarStyle}"/> <ScrollBar x:Name="PART_HorizontalScrollBar" AutomationProperties.AutomationId="HorizontalScrollBar" Cursor="Arrow" Grid.Column="0" Maximum="{TemplateBinding ScrollableWidth}" Minimum="0" Orientation="Horizontal" Grid.Row="1" Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}" Value="{Binding HorizontalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" ViewportSize="{TemplateBinding ViewportWidth}" Style="{DynamicResource MyScrollBarStyle}"/> </Grid> </ControlTemplate> <SolidColorBrush x:Key="ScrollBarDisabledBackground" Color="#F4F4F4"/> <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 Fill="{TemplateBinding Background}" Height="{TemplateBinding Height}" Width="{TemplateBinding Width}"/> </ControlTemplate> </Setter.Value> </Setter> </Style> <!--滚动条颜色、圆角等设置--> <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}"> <!--滚动条颜色和圆角设置--> <Rectangle Name="thumbRect" Fill="#03ffea" RadiusX="3" RadiusY="3"/> <!--鼠标拉动滚动条时的颜色--> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter Property="Fill" Value="CornflowerBlue" TargetName="thumbRect" /> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style> <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 Fill="{TemplateBinding Background}" Height="{TemplateBinding Height}" Width="{TemplateBinding Width}"/> </ControlTemplate> </Setter.Value> </Setter> </Style> <Style x:Key="MyScrollBarStyle" TargetType="{x:Type ScrollBar}"> <Setter Property="Background" Value="AliceBlue"/> <Setter Property="Stylus.IsPressAndHoldEnabled" Value="false"/> <Setter Property="Stylus.IsFlicksEnabled" Value="false"/><!--滚动条宽度--> <Setter Property="Width" Value="8"/> <Setter Property="MinWidth" Value="6"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ScrollBar}"> <!--滚动条背景色--> <Grid x:Name="Bg" Background="#001f55" SnapsToDevicePixels="true" Width="8"> <Grid.RowDefinitions> <RowDefinition /> </Grid.RowDefinitions> <Track x:Name="PART_Track" IsDirectionReversed="true" IsEnabled="{TemplateBinding IsMouseOver}"> <Track.DecreaseRepeatButton> <RepeatButton Command="{x:Static ScrollBar.PageUpCommand}" Style="{StaticResource VerticalScrollBarPageButton}"/> </Track.DecreaseRepeatButton> <Track.IncreaseRepeatButton> <RepeatButton Command="{x:Static ScrollBar.PageDownCommand}" Style="{StaticResource VerticalScrollBarPageButton}"/> </Track.IncreaseRepeatButton> <Track.Thumb> <Thumb Style="{StaticResource ScrollBarThumb}"/> </Track.Thumb> </Track> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Background" TargetName="Bg" Value="{StaticResource ScrollBarDisabledBackground}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> <Style.Triggers> <Trigger Property="Orientation" Value="Horizontal"> <Setter Property="Width" Value="Auto"/> <Setter Property="MinWidth" Value="0"/> <Setter Property="Height" Value="6"/> <Setter Property="MinHeight" Value="6"/> <Setter Property="Background" Value="AliceBlue"/> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type ScrollBar}"> <Grid x:Name="Bg" Background="Red" SnapsToDevicePixels="true"> <Grid.ColumnDefinitions> <ColumnDefinition /> </Grid.ColumnDefinitions> <Track x:Name="PART_Track" IsEnabled="{TemplateBinding IsMouseOver}"> <Track.DecreaseRepeatButton> <RepeatButton Command="{x:Static ScrollBar.PageLeftCommand}" Style="{StaticResource HorizontalScrollBarPageButton}"/> </Track.DecreaseRepeatButton> <Track.IncreaseRepeatButton> <RepeatButton Command="{x:Static ScrollBar.PageRightCommand}" Style="{StaticResource HorizontalScrollBarPageButton}"/> </Track.IncreaseRepeatButton> <Track.Thumb> <Thumb Style="{StaticResource ScrollBarThumb}" /> </Track.Thumb> </Track> </Grid> <ControlTemplate.Triggers> <Trigger Property="IsEnabled" Value="false"> <Setter Property="Background" TargetName="Bg" Value="{StaticResource ScrollBarDisabledBackground}"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Trigger> </Style.Triggers> </Style></ResourceDictionary>

2、在窗口中引用资源字典

<Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="ScrollViewDictionary.xaml" /> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources>

3、scrollViewer中使用新样式

<ScrollViewer Template="{StaticResource MyScrollViewer}" Grid.Column="0" Grid.Row="1" VerticalAlignment="Top" Grid.ColumnSpan="2" x:Name="scrList" Margin="0" VerticalScrollBarVisibility="Auto" Height="350" Width="250"> <StackPanel Orientation="Vertical" Name="layerList" ScrollViewer.VerticalScrollBarVisibility="Visible" Width="250" > </StackPanel> </ScrollViewer>

自定义完成，以上是所有步骤和代码，可以根据自己程序的整体设计来更改颜色、宽度、圆角等效果。

以上为个人经验，希望能给大家一个参考，也希望大家多多支持。如有错误或未考虑完全的地方，望不吝赐教。