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

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