WPF ScrollViewer滚动条样式，适合触摸屏使用

触摸屏上客户要求滚动条宽度大些，方便手指上下滚动，之前在网上看了个，原文找不到了，代码记录下。

效果如下：

<ControlTemplate x:Key="ScrollViewerControlTemplate1" TargetType="{x:Type ScrollViewer}">
            <Grid x:Name="Grid" Background="{TemplateBinding Background}">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*"/>
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>
                <ScrollContentPresenter x:Name="PART_ScrollContentPresenter" CanContentScroll="{TemplateBinding CanContentScroll}" CanHorizontallyScroll="False" CanVerticallyScroll="False" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" Grid.Column="0" Margin="{TemplateBinding Padding}" />
                <ScrollBar x:Name="PART_VerticalScrollBar" AutomationProperties.AutomationId="VerticalScrollBar" Cursor="Arrow" Grid.Column="1" Maximum="{TemplateBinding ScrollableHeight}" Minimum="0"  Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}" Value="{Binding VerticalOffset, Mode=OneWay, RelativeSource={RelativeSource TemplatedParent}}" ViewportSize="{TemplateBinding ViewportHeight}" Style="{DynamicResource ScrollBarStyle1}"/>
            </Grid>
        </ControlTemplate>
        <LinearGradientBrush x:Key="VerticalScrollBarBackground" EndPoint="1,0" StartPoint="0,0">
            <GradientStop Color="#E1E1E1" Offset="0"/>
            <GradientStop Color="#EDEDED" Offset="0.20"/>
            <GradientStop Color="#EDEDED" Offset="0.80"/>
            <GradientStop Color="#E3E3E3" Offset="1"/>
        </LinearGradientBrush>
        <SolidColorBrush x:Key="ScrollBarDisabledBackground" Color="#F4F4F4"/>
        <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 x:Name="Chrome" RenderMouseOver="{TemplateBinding IsMouseOver}" RenderPressed="{TemplateBinding IsPressed}" SnapsToDevicePixels="true" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="{TemplateBinding Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph}"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <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>
        <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}">
                        <Border x:Name="border" CornerRadius="3" Background="#A5A5A5" BorderBrush="#666666" BorderThickness="1" >
                            <Image x:Name="image" Source="/Images/bar_center.png" VerticalAlignment="Center"></Image>
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsDragging" Value="True">
                                <Setter Property="Background" TargetName="border" Value="#7F7F7F"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <LinearGradientBrush x:Key="HorizontalScrollBarBackground" EndPoint="0,1" StartPoint="0,0">
            <GradientStop Color="#E1E1E1" Offset="0"/>
            <GradientStop Color="#EDEDED" Offset="0.20"/>
            <GradientStop Color="#EDEDED" Offset="0.80"/>
            <GradientStop Color="#E3E3E3" 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 Fill="{TemplateBinding Background}" Height="{TemplateBinding Height}" Width="{TemplateBinding Width}"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <Style x:Key="ScrollBarStyle1" TargetType="{x:Type ScrollBar}">
            <Setter Property="Background" Value="{StaticResource VerticalScrollBarBackground}"/>
            <Setter Property="Stylus.IsPressAndHoldEnabled" Value="false"/>
            <Setter Property="Stylus.IsFlicksEnabled" Value="false"/>
            <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
            <Setter Property="Width" Value="40"/>
            <Setter Property="MinWidth" Value="{DynamicResource {x:Static SystemParameters.VerticalScrollBarWidthKey}}"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollBar}">
                        <Grid x:Name="Bg" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
                            <Grid.RowDefinitions>
                                <RowDefinition MaxHeight="{DynamicResource {x:Static SystemParameters.VerticalScrollBarButtonHeightKey}}"/>
                                <RowDefinition Height="0.00001*"/>
                                <RowDefinition MaxHeight="{DynamicResource {x:Static SystemParameters.VerticalScrollBarButtonHeightKey}}"/>
                            </Grid.RowDefinitions>
                            <RepeatButton x:Name="UpButton" Command="{x:Static ScrollBar.LineUpCommand}" IsEnabled="{TemplateBinding IsMouseOver}"   >
                                <RepeatButton.Content>
                                    <Image x:Name="imgUp" Source="/BarUp.png" Stretch="Fill"></Image>
                                </RepeatButton.Content>
                            </RepeatButton>
                            <Track x:Name="PART_Track" IsDirectionReversed="true" IsEnabled="{TemplateBinding IsMouseOver}" Grid.Row="1">
                                <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>
                            <RepeatButton Command="{x:Static ScrollBar.LineDownCommand}" IsEnabled="{TemplateBinding IsMouseOver}" Grid.Row="2" >
                                <RepeatButton.Content>
                                    <Image x:Name="imgDown" Source="/Images/BarDown.png"  Stretch="Fill"></Image>
                                </RepeatButton.Content>
                            </RepeatButton>
                        </Grid>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsEnabled" SourceName="UpButton" Value="True">
                                <Setter Property="Source" TargetName="imgUp" Value="/Images/BarUp_S.png"/>
                                <Setter Property="Source" TargetName="imgDown" Value="/Images/BarDown_S.png"/>
                            </Trigger>
                            <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="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarHeightKey}}"/>
                    <Setter Property="MinHeight" Value="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarHeightKey}}"/>
                    <Setter Property="Background" Value="{StaticResource HorizontalScrollBarBackground}"/>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type ScrollBar}">
                                <Grid x:Name="Bg" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition MaxWidth="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarButtonWidthKey}}"/>
                                        <ColumnDefinition Width="0.00001*"/>
                                        <ColumnDefinition MaxWidth="{DynamicResource {x:Static SystemParameters.HorizontalScrollBarButtonWidthKey}}"/>
                                    </Grid.ColumnDefinitions>
                                    <RepeatButton Command="{x:Static ScrollBar.LineLeftCommand}" IsEnabled="{TemplateBinding IsMouseOver}" Style="{StaticResource ScrollBarButton}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="LeftArrow"/>
                                    <Track x:Name="PART_Track" Grid.Column="1" 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}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="HorizontalGripper"/>
                                        </Track.Thumb>
                                    </Track>
                                    <RepeatButton Grid.Column="2" Command="{x:Static ScrollBar.LineRightCommand}" IsEnabled="{TemplateBinding IsMouseOver}" Style="{StaticResource ScrollBarButton}" Microsoft_Windows_Themes:ScrollChrome.ScrollGlyph="RightArrow"/>
                                </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>

源码下载：WpfApp1.rar