changement d'apparence élément scrollviewer

**SkaknYoshi** · 04/04/2014, 15h26

Salut,

J'ai une question un peu conne, mais dont je n'arrive pas à trouver la réponse.
Pour des raisons esthétiques, j'ai changé l'apparence en taille et en couleur notamment, de mes scrollbars. Cependant il existe une petite zone en gris clair en bas à droite, dont je ne connais pas le nom et dont je voudrais changer l'apparence. Merci d'avance pour la personne qui me répondra.

Je vous joins l'image correspondante en PJ.

**MABROUKI** · 06/04/2014, 01h51

bonjour

Tu n'as qu'a examiner le style de ton scrollviewer dont le controltemplate utilise un grid avec :
-2 ColumnDefinitions
-2 RowDefinitions
Apres positionnement des 2 scrollbars il reste une zone carre vide dans le coin (droit ou -gauche comme dans cet exemple msdn doc):
Cette zone vide appartient au grid....utilise son bacground !!!...

code xaml exemple msdn d'un style scrollviewer:

Code :

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<Window x:Class="WpfAdornerCursor.Window1"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window1" Height="300" Width="300"
     >
    <Window.Resources>
 
 
        <Style TargetType="{x:Type ScrollViewer}">
            <Setter Property="OverridesDefaultStyle" Value="True" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollViewer}">
                        <!--c'est par là-->
                        <Grid
                            Background="Aquamarine"   >
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition Width="*"/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="Auto"/>
                            </Grid.RowDefinitions>
                            <Border Grid.Row="0" Grid.Column="1">
                                <ScrollContentPresenter CanContentScroll="True" Content="{TemplateBinding ScrollViewer.Content}" />
                            </Border>
                            <ScrollBar 
                                Orientation="Vertical" Grid.Row="0" Grid.Column="0" Minimum="0" Maximum="{TemplateBinding ScrollViewer.ScrollableHeight}" Value="{TemplateBinding ScrollViewer.VerticalOffset}" ViewportSize="{TemplateBinding ScrollViewer.ViewportHeight}" Name="PART_VerticalScrollBar" Visibility="{TemplateBinding ScrollViewer.ComputedVerticalScrollBarVisibility}" 
 />
                            <ScrollBar 
                                Orientation="Horizontal" Grid.Row="1" Grid.Column="1" Minimum="0" Maximum="{TemplateBinding ScrollViewer.ScrollableWidth}" Value="{TemplateBinding ScrollViewer.HorizontalOffset}" ViewportSize="{TemplateBinding ScrollViewer.ViewportWidth}" Name="PART_HorizontalScrollBar" Visibility="{TemplateBinding ScrollViewer.ComputedHorizontalScrollBarVisibility}"/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <Style x:Key="ScrollBar_LineButton" TargetType="{x:Type RepeatButton}">
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type RepeatButton}">
                        <Border x:Name="Border" CornerRadius="2" BorderBrush="DarkSlateGray" BorderThickness="1">
                            <Border.Background>
                                <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                    <LinearGradientBrush.GradientStops>
                                        <GradientStop Offset="0" Color="White"/>
                                        <GradientStop Offset="1" Color="#CDCDCD"/>
                                    </LinearGradientBrush.GradientStops>
                                </LinearGradientBrush>
                            </Border.Background>
                            <Path HorizontalAlignment="Center" VerticalAlignment="Center" Fill="DarkSlateBlue" Data="{Binding Path=Content,
                       RelativeSource={RelativeSource TemplatedParent}}"  />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsMouseOver" Value="true">
                                <Setter TargetName="Border" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <LinearGradientBrush.GradientStops>
                                                <GradientStop Offset="0" Color="White"/>
                                                <GradientStop Offset="1" Color="#E0E0E0"/>
                                            </LinearGradientBrush.GradientStops>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                                <Setter TargetName="Border" Property="BorderBrush" Value="Gray" />
                            </Trigger>
                            <Trigger Property="IsPressed" Value="true">
                                <Setter TargetName="Border" Property="Background">
                                    <Setter.Value>
                                        <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                            <LinearGradientBrush.GradientStops>
                                                <GradientStop Offset="0" Color="#EEEEEE"/>
                                                <GradientStop Offset="1" Color="#DFDFDF"/>
                                            </LinearGradientBrush.GradientStops>
                                        </LinearGradientBrush>
                                    </Setter.Value>
                                </Setter>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <Style x:Key="ScrollBar_PageButton" TargetType="{x:Type RepeatButton}">
            <Setter Property="OverridesDefaultStyle" Value="true" />
            <Setter Property="IsTabStop" Value="false" />
            <Setter Property="Focusable" Value="false" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type RepeatButton}">
                        <Rectangle Fill="Transparent" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <Style x:Key="ScrollBar_Thumb" TargetType="{x:Type Thumb}">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Thumb}">
                        <Border CornerRadius="3" BorderBrush="Silver" BorderThickness="1">
                            <Border.Background>
                                <LinearGradientBrush StartPoint="0,0" EndPoint="1,0">
                                    <LinearGradientBrush.GradientStops>
                                        <GradientStop Offset="0" Color="LightSteelBlue"/>
                                        <GradientStop Offset="1" Color="White"/>
                                    </LinearGradientBrush.GradientStops>
                                </LinearGradientBrush>
                            </Border.Background>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
        <!-- ScrollBar Style -->
 
        <Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
            <Setter Property="Stylus.IsFlicksEnabled" Value="false" />
            <Setter Property="Background" Value="#FBFBFB" />
            <Setter Property="Width" Value="16" />
            <Setter Property="MinWidth" Value="16" />
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollBar}">
                        <Grid>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="16" />
                                <RowDefinition Height="*"/>
                                <RowDefinition Height="16" />
                            </Grid.RowDefinitions>
                            <RepeatButton Grid.Row="0" 
                                          Background="Yellow" 
                                          Style="{DynamicResource ScrollBar_LineButton}" Command="ScrollBar.LineUpCommand" Content="M 0 4 L 7 4 L 3.5 0 Z" />
                            <Border Grid.Row="1" BorderBrush="DarkBlue" BorderThickness="1" Background="{TemplateBinding Background}" CornerRadius="2" />
                            <Track Grid.Row="1" Name="PART_Track" IsDirectionReversed="true">
                                <Track.DecreaseRepeatButton>
                                    <RepeatButton Style="{StaticResource ScrollBar_PageButton}"/>
                                </Track.DecreaseRepeatButton>
                                <Track.Thumb>
                                    <Thumb Style="{StaticResource ScrollBar_Thumb}" MinHeight="4"/>
                                </Track.Thumb>
                                <Track.IncreaseRepeatButton>
                                    <RepeatButton Style="{StaticResource ScrollBar_PageButton}"/>
                                </Track.IncreaseRepeatButton>
                            </Track>
                            <RepeatButton Grid.Row="2" Style="{DynamicResource ScrollBar_LineButton}" Command="ScrollBar.LineDownCommand" Content="M 0 0 L 3.5 4 L 7 0 Z" />
                        </Grid>
                    </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="16" />
                    <Setter Property="MinHeight" Value="16" />
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type ScrollBar}">
                                <Grid Background="{TemplateBinding Background}">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="16" />
                                        <ColumnDefinition Width="*"/>
                                        <ColumnDefinition Width="16" />
                                    </Grid.ColumnDefinitions>
                                    <RepeatButton Grid.Column="0" Style="{DynamicResource ScrollBar_LineButton}" Command="ScrollBar.LineLeftCommand" Content="M 0 4 L 4 8 L 4 0 Z" />
                                    <Border Grid.Column="1" BorderBrush="DarkBlue" BorderThickness="1" Background="{TemplateBinding Background}" CornerRadius="2" />
                                    <Track Grid.Column="1" Name="PART_Track" IsDirectionReversed="false">
                                        <Track.DecreaseRepeatButton>
                                            <RepeatButton Style="{StaticResource ScrollBar_PageButton}"/>
                                        </Track.DecreaseRepeatButton>
                                        <Track.Thumb>
                                            <Thumb Style="{StaticResource ScrollBar_Thumb}" MinWidth="4"/>
                                        </Track.Thumb>
                                        <Track.IncreaseRepeatButton>
                                            <RepeatButton Style="{StaticResource ScrollBar_PageButton}"/>
                                        </Track.IncreaseRepeatButton>
                                    </Track>
                                    <RepeatButton Grid.Column="2" Style="{DynamicResource ScrollBar_LineButton}" Command="ScrollBar.LineRightCommand" Content="M 0 0 L 0 8 L 4 4 Z" />
                                </Grid>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                </Trigger>
            </Style.Triggers>
        </Style>
 
    </Window.Resources>
        <ScrollViewer 
            HorizontalScrollBarVisibility="Auto">
        <StackPanel 
 
            VerticalAlignment="Top" 
            HorizontalAlignment="Left">
            <TextBlock TextWrapping="Wrap" Margin="0,0,0,20">Scrolling is enabled when it is necessary. 
      Resize the window, making it larger and smaller.</TextBlock>
            <Rectangle Fill="Red" Width="500" Height="500"></Rectangle>
        </StackPanel>
    </ScrollViewer>
 
</Window>

bon code............

**SkaknYoshi** · 07/04/2014, 17h32

Code :

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<Style x:Key="FavsScrollViewer" TargetType="{x:Type ScrollViewer}">
            <Setter Property="OverridesDefaultStyle" Value="True"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollViewer}">
                        <Grid Background="BlueViolet">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition/>
                                <RowDefinition Height="Auto"/>
                            </Grid.RowDefinitions>
 
                            <ScrollContentPresenter Grid.Column="1"/>
 
                            <ScrollBar x:Name="PART_VerticalScrollBar"
            Value="{TemplateBinding VerticalOffset}"
            Maximum="{TemplateBinding ScrollableHeight}"
            ViewportSize="{TemplateBinding ViewportHeight}"
            Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                            <ScrollBar x:Name="PART_HorizontalScrollBar"
            Orientation="Horizontal"
            Grid.Row="1"
            Grid.Column="1"
            Value="{TemplateBinding HorizontalOffset}"
            Maximum="{TemplateBinding ScrollableWidth}"
            ViewportSize="{TemplateBinding ViewportWidth}"
            Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
 
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

Ceci est le code que j'avais(jai épargné les parties spécifiques scrollbar), j'ai ajouté Background="BlueViolet" mais le coin est toujours gris clair,
y'a t'il un moyen de lui spécifier un emplacement row column peut etre?

**MABROUKI** · 08/04/2014, 03h26

re-bonjour
Tres bizarre ....

Chez moi il est blueviolet ...ainsi que le fond du textblock ...Tu as peut etre besoin d'aller regarder un aquarium !!! c'est reposant quand on code trop...

ton dernier style applique à mon winform perfect...

Code :

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<Window x:Class="WpfAdornerCursor.Window2"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Window2" Height="300" Width="300">
    <Window.Resources>
 
 
        <Style x:Key="FavsScrollViewer" TargetType="{x:Type ScrollViewer}">
            <Setter Property="OverridesDefaultStyle" Value="True"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollViewer}">
                        <Grid Background="BlueViolet">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition />
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition />
                                <RowDefinition Height="Auto"/>
                            </Grid.RowDefinitions>
                            <ScrollContentPresenter Grid.Column="1"/>
 
                            <ScrollBar x:Name="PART_VerticalScrollBar"
                                Value="{TemplateBinding VerticalOffset}"
                                Maximum="{TemplateBinding ScrollableHeight}"
                                ViewportSize="{TemplateBinding ViewportHeight}"
                                Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                            <ScrollBar x:Name="PART_HorizontalScrollBar"
                                Orientation="Horizontal"
                                Grid.Row="1"
                                Grid.Column="1"
                                Value="{TemplateBinding HorizontalOffset}"
                                Maximum="{TemplateBinding ScrollableWidth}"
                                ViewportSize="{TemplateBinding ViewportWidth}"
                                Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
 
 
 
 
    </Window.Resources>
    <ScrollViewer 
        Style="{Binding Source={StaticResource FavsScrollViewer}}"
            HorizontalScrollBarVisibility="Auto">
        <StackPanel 
 
            VerticalAlignment="Top" 
            HorizontalAlignment="Left">
            <TextBlock TextWrapping="Wrap" Margin="0,0,0,20">Scrolling is enabled when it is necessary. 
      Resize the window, making it larger and smaller.</TextBlock>
            <Rectangle Fill="Red" Width="500" Height="500"></Rectangle>
        </StackPanel>
    </ScrollViewer>
 
</Window>
 
bon code....

**SkaknYoshi** · 08/04/2014, 09h20

Euh... c'est bon j'ai trouvé! j'avais pas de soucis rassure toi je voyais pas la bonne couleur...
Le fait que tu mettes ton code m'a fait pensé à un truc tout cas, vérifier au moment ou j'utilise mon scrollviewer si je faisais bien appel au style.
Et comme un boulet j'avais oublié... j'ai donc rajouté

Code :

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Style="{Binding Source={StaticResource FavsScrollViewer}}"

et comme par hasard cela fonctionne...

Je mérite que l'on me flagelle sur place pour avoir oublié ça...

**SkaknYoshi** · 08/04/2014, 15h33

Euh j'avais mis résolu, mais en fait c'est pas bon, maintenant lorsque je zoome mes scrollbars n'apparaissent plus comme il faut. Je vous joins l'ensemble du code correspondant au style :

Code :

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<Style x:Key="FavsScrollViewer" TargetType="{x:Type ScrollViewer}">
            <Setter Property="OverridesDefaultStyle" Value="True"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type ScrollViewer}">
                        <Grid Background="BlueViolet">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="Auto"/>
                                <ColumnDefinition/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition/>
                                <RowDefinition Height="Auto"/>
                            </Grid.RowDefinitions>
 
                            <ScrollContentPresenter Grid.Column="1"/>
 
                            <ScrollBar x:Name="PART_VerticalScrollBar"
            Value="{TemplateBinding VerticalOffset}"
            Maximum="{TemplateBinding ScrollableHeight}"
                                        Grid.Row="0" Grid.Column="0"
            ViewportSize="{TemplateBinding ViewportHeight}"
            Visibility="{TemplateBinding ComputedVerticalScrollBarVisibility}"/>
                            <ScrollBar x:Name="PART_HorizontalScrollBar"
            Orientation="Horizontal"
            Grid.Row="1"
            Grid.Column="1"
            Value="{TemplateBinding HorizontalOffset}"
            Maximum="{TemplateBinding ScrollableWidth}"
            ViewportSize="{TemplateBinding ViewportWidth}"
            Visibility="{TemplateBinding ComputedHorizontalScrollBarVisibility}"/>
 
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
 
 
 
 
 
        <Style x:Key="ScrollBarLineButton" TargetType="{x:Type RepeatButton}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="Focusable" Value="false"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type RepeatButton}">
                        <Border
          x:Name="Border"
          Margin="1"
          CornerRadius="2"
          Background="{StaticResource NormalBrush}"
          BorderBrush="{StaticResource NormalBorderBrush}"
          BorderThickness="1">
                            <Path
            HorizontalAlignment="Center"
            VerticalAlignment="Center"
            Fill="{StaticResource GlyphBrush}"
            Data="{Binding Content, RelativeSource={RelativeSource TemplatedParent}}" />
                        </Border>
                        <ControlTemplate.Triggers>
                            <Trigger Property="IsPressed" Value="true">
                                <Setter TargetName="Border" Property="Background"
                                Value="{StaticResource PressedBrush}" />
                            </Trigger>
                            <Trigger Property="IsEnabled" Value="false">
                                <Setter Property="Foreground"
                                Value="{StaticResource DisabledForegroundBrush}"/>
                            </Trigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <Style x:Key="ScrollBarPageButton" TargetType="{x:Type RepeatButton}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="IsTabStop" Value="false"/>
            <Setter Property="Focusable" Value="false"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type RepeatButton}">
                        <Border Background="Transparent" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <Style x:Key="ScrollBarThumb" TargetType="{x:Type Thumb}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Setter Property="IsTabStop" Value="false"/>
            <Setter Property="Focusable" Value="false"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type Thumb}">
                        <Border
          CornerRadius="2"
          BorderBrush="{TemplateBinding BorderBrush}"
          BorderThickness="1" />
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
 
        <ControlTemplate x:Key="VerticalScrollBar"
            TargetType="{x:Type ScrollBar}">
            <Grid >
                <Grid.RowDefinitions>
                    <RowDefinition MaxHeight="18"/>
                    <RowDefinition Height="0.00001*"/>
                    <RowDefinition MaxHeight="18"/>
                </Grid.RowDefinitions>
                <Border
      Grid.RowSpan="3"
      CornerRadius="2"
      Background="#FF424242" />
                <RepeatButton
      Grid.Row="0"
      Style="{StaticResource ScrollBarLineButton}"
      Height="18"
      Command="ScrollBar.LineUpCommand"
      Content="M 0 4 L 8 4 L 4 0 Z" />
                <Track
      x:Name="PART_Track"
      Grid.Row="1"
      IsDirectionReversed="true">
                    <Track.DecreaseRepeatButton>
                        <RepeatButton
          Style="{StaticResource ScrollBarPageButton}"
          Command="ScrollBar.PageUpCommand" />
                    </Track.DecreaseRepeatButton>
                    <Track.Thumb>
                        <Thumb
          Style="{StaticResource ScrollBarThumb}"
          Margin="1,0,1,0"
          Background="{StaticResource HorizontalNormalBrush}"
          BorderBrush="{StaticResource HorizontalNormalBorderBrush}" />
                    </Track.Thumb>
                    <Track.IncreaseRepeatButton>
                        <RepeatButton
          Style="{StaticResource ScrollBarPageButton}"
          Command="ScrollBar.PageDownCommand" />
                    </Track.IncreaseRepeatButton>
                </Track>
                <RepeatButton
      Grid.Row="3"
      Style="{StaticResource ScrollBarLineButton}"
      Height="18"
      Command="ScrollBar.LineDownCommand"
      Content="M 0 0 L 4 4 L 8 0 Z"/>
            </Grid>
        </ControlTemplate>
 
        <ControlTemplate x:Key="HorizontalScrollBar"
            TargetType="{x:Type ScrollBar}">
            <Grid >
                <Grid.ColumnDefinitions>
                    <ColumnDefinition MaxWidth="18"/>
                    <ColumnDefinition Width="0.00001*"/>
                    <ColumnDefinition MaxWidth="18"/>
                </Grid.ColumnDefinitions>
                <Border
      Grid.ColumnSpan="3"
      CornerRadius="2"
      Background="#FF424242" />
                <RepeatButton
      Grid.Column="0"
      Style="{StaticResource ScrollBarLineButton}"
      Width="18"
      Command="ScrollBar.LineLeftCommand"
      Content="M 4 0 L 4 8 L 0 4 Z" />
                <Track
      x:Name="PART_Track"
      Grid.Column="1"
      IsDirectionReversed="False">
                    <Track.DecreaseRepeatButton>
                        <RepeatButton
          Style="{StaticResource ScrollBarPageButton}"
          Command="ScrollBar.PageLeftCommand" />
                    </Track.DecreaseRepeatButton>
                    <Track.Thumb>
                        <Thumb
          Style="{StaticResource ScrollBarThumb}"
          Margin="0,1,0,1"
          Background="{StaticResource NormalBrush}"
          BorderBrush="{StaticResource NormalBorderBrush}" />
                    </Track.Thumb>
                    <Track.IncreaseRepeatButton>
                        <RepeatButton
          Style="{StaticResource ScrollBarPageButton}"
          Command="ScrollBar.PageRightCommand" />
                    </Track.IncreaseRepeatButton>
                </Track>
                <RepeatButton
      Grid.Column="3"
      Style="{StaticResource ScrollBarLineButton}"
      Width="18"
      Command="ScrollBar.LineRightCommand"
      Content="M 0 0 L 4 4 L 0 8 Z"/>
            </Grid>
        </ControlTemplate>
 
        <Style x:Key="{x:Type ScrollBar}" TargetType="{x:Type ScrollBar}">
            <Setter Property="SnapsToDevicePixels" Value="True"/>
            <Setter Property="OverridesDefaultStyle" Value="true"/>
            <Style.Triggers>
                <Trigger Property="Orientation" Value="Horizontal">
                    <Setter Property="Width" Value="Auto"/>
                    <Setter Property="Height" Value="10" />
                    <Setter Property="Template"
                        Value="{StaticResource HorizontalScrollBar}" />
                </Trigger>
                <Trigger Property="Orientation" Value="Vertical">
                    <Setter Property="Width" Value="10"/>
                    <Setter Property="Height" Value="Auto" />
                    <Setter Property="Template"
                        Value="{StaticResource VerticalScrollBar}" />
                </Trigger>
            </Style.Triggers>
        </Style>

Je sens bien encore un truc à la "bip" mais à force d'être dessus je vois plus rien

changement d'apparence élément scrollviewer

Windows Presentation Foundation

Vue hybride

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