Styles et modèles de la barre de défilement
Cette rubrique décrit les styles et les modèles du contrôle ScrollBar. Vous pouvez modifier la ControlTemplate par défaut pour donner au contrôle une apparence unique. Pour plus d’informations, consultez Créer un modèle pour un contrôle.
Composants de la barre de défilement
Le tableau suivant répertorie les parties nommées du contrôle ScrollBar.
| Partie | Type | Description |
|---|---|---|
| PART_Track | Track | Conteneur de l’élément qui indique la position du ScrollBar. |
États de la barre de défilement
Le tableau suivant répertorie les états visuels du contrôle ScrollBar.
| Nom VisualState | Nom visualStateGroup | Description |
|---|---|---|
| Normal | CommonStates | État par défaut. |
| Survol de la souris | ÉtatsCommuns | Le pointeur de la souris est positionné sur l'élément de contrôle. |
| Handicapé | États Communs | Le contrôle est désactivé. |
| Valide | ÉtatsDeValidation | Le contrôle utilise la classe Validation et la propriété jointe Validation.HasError est false. |
| FocusInvalide | États de validation | La propriété jointe Validation.HasError est true et le contrôle a le focus. |
| InvalideNonFocalisé | ÉtatsDeValidation | La propriété jointe Validation.HasError est true et le contrôle n’a pas le focus. |
Exemple de modèle de contrôle pour barre de défilement
L’exemple suivant montre comment définir un ControlTemplate pour le contrôle ScrollBar.
<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"
BorderThickness="1">
<Border.BorderBrush>
<LinearGradientBrush StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource BorderMediumColor}"
Offset="0.0" />
<GradientStop Color="{DynamicResource BorderDarkColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Border.BorderBrush>
<Border.Background>
<LinearGradientBrush StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource ControlLightColor}"/>
<GradientStop Color="{DynamicResource ControlMediumColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Border.Background>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver" />
<VisualState x:Name="Pressed">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
Storyboard.TargetProperty="(Panel.Background).
(GradientBrush.GradientStops)[1].(GradientStop.Color)">
<EasingColorKeyFrame KeyTime="0"
Value="{StaticResource ControlPressedColor}" />
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<ColorAnimationUsingKeyFrames Storyboard.TargetName="Arrow"
Storyboard.TargetProperty="(Shape.Fill).
(SolidColorBrush.Color)">
<EasingColorKeyFrame KeyTime="0"
Value="{StaticResource DisabledForegroundColor}" />
</ColorAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Path x:Name="Arrow"
HorizontalAlignment="Center"
VerticalAlignment="Center"
Data="{Binding Content,
RelativeSource={RelativeSource TemplatedParent}}" >
<Path.Fill>
<SolidColorBrush Color="{DynamicResource GlyphColor}"/>
</Path.Fill>
</Path>
</Border>
</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"
Background="{TemplateBinding Background}"
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="#F0F0F0" />
<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">
<Thumb.BorderBrush>
<LinearGradientBrush StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource BorderLightColor}"
Offset="0.0" />
<GradientStop Color="{DynamicResource BorderDarkColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Thumb.BorderBrush>
<Thumb.Background>
<LinearGradientBrush StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource ControlLightColor}"
Offset="0.0" />
<GradientStop Color="{DynamicResource ControlMediumColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Thumb.Background>
</Thumb>
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageDownCommand" />
</Track.IncreaseRepeatButton>
</Track>
<RepeatButton Grid.Row="2"
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="#F0F0F0" />
<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">
<Thumb.BorderBrush>
<LinearGradientBrush StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource BorderLightColor}"
Offset="0.0" />
<GradientStop Color="{DynamicResource BorderDarkColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Thumb.BorderBrush>
<Thumb.Background>
<LinearGradientBrush StartPoint="0,0"
EndPoint="0,1">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="{DynamicResource ControlLightColor}"
Offset="0.0" />
<GradientStop Color="{DynamicResource ControlMediumColor}"
Offset="1.0" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Thumb.Background>
</Thumb>
</Track.Thumb>
<Track.IncreaseRepeatButton>
<RepeatButton Style="{StaticResource ScrollBarPageButton}"
Command="ScrollBar.PageRightCommand" />
</Track.IncreaseRepeatButton>
</Track>
<RepeatButton Grid.Column="2"
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="18" />
<Setter Property="Template"
Value="{StaticResource HorizontalScrollBar}" />
</Trigger>
<Trigger Property="Orientation"
Value="Vertical">
<Setter Property="Width"
Value="18" />
<Setter Property="Height"
Value="Auto" />
<Setter Property="Template"
Value="{StaticResource VerticalScrollBar}" />
</Trigger>
</Style.Triggers>
</Style>
L’exemple précédent utilise une ou plusieurs des ressources suivantes.
<!--Control colors.-->
<Color x:Key="WindowColor">#FFE8EDF9</Color>
<Color x:Key="ContentAreaColorLight">#FFC5CBF9</Color>
<Color x:Key="ContentAreaColorDark">#FF7381F9</Color>
<Color x:Key="DisabledControlLightColor">#FFE8EDF9</Color>
<Color x:Key="DisabledControlDarkColor">#FFC5CBF9</Color>
<Color x:Key="DisabledForegroundColor">#FF888888</Color>
<Color x:Key="SelectedBackgroundColor">#FFC5CBF9</Color>
<Color x:Key="SelectedUnfocusedColor">#FFDDDDDD</Color>
<Color x:Key="ControlLightColor">White</Color>
<Color x:Key="ControlMediumColor">#FF7381F9</Color>
<Color x:Key="ControlDarkColor">#FF211AA9</Color>
<Color x:Key="ControlMouseOverColor">#FF3843C4</Color>
<Color x:Key="ControlPressedColor">#FF211AA9</Color>
<Color x:Key="GlyphColor">#FF444444</Color>
<Color x:Key="GlyphMouseOver">sc#1, 0.004391443, 0.002428215, 0.242281124</Color>
<!--Border colors-->
<Color x:Key="BorderLightColor">#FFCCCCCC</Color>
<Color x:Key="BorderMediumColor">#FF888888</Color>
<Color x:Key="BorderDarkColor">#FF444444</Color>
<Color x:Key="PressedBorderLightColor">#FF888888</Color>
<Color x:Key="PressedBorderDarkColor">#FF444444</Color>
<Color x:Key="DisabledBorderLightColor">#FFAAAAAA</Color>
<Color x:Key="DisabledBorderDarkColor">#FF888888</Color>
<Color x:Key="DefaultBorderBrushDarkColor">Black</Color>
<!--Control-specific resources.-->
<Color x:Key="HeaderTopColor">#FFC5CBF9</Color>
<Color x:Key="DatagridCurrentCellBorderColor">Black</Color>
<Color x:Key="SliderTrackDarkColor">#FFC5CBF9</Color>
<Color x:Key="NavButtonFrameColor">#FF3843C4</Color>
<LinearGradientBrush x:Key="MenuPopupBrush"
EndPoint="0.5,1"
StartPoint="0.5,0">
<GradientStop Color="{DynamicResource ControlLightColor}"
Offset="0" />
<GradientStop Color="{DynamicResource ControlMediumColor}"
Offset="0.5" />
<GradientStop Color="{DynamicResource ControlLightColor}"
Offset="1" />
</LinearGradientBrush>
<LinearGradientBrush x:Key="ProgressBarIndicatorAnimatedFill"
StartPoint="0,0"
EndPoint="1,0">
<LinearGradientBrush.GradientStops>
<GradientStopCollection>
<GradientStop Color="#000000FF"
Offset="0" />
<GradientStop Color="#600000FF"
Offset="0.4" />
<GradientStop Color="#600000FF"
Offset="0.6" />
<GradientStop Color="#000000FF"
Offset="1" />
</GradientStopCollection>
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
Pour obtenir l’exemple complet, consultez Exemple de style avec des ControlTemplates.
Voir aussi
Collaborer avec nous sur GitHub
La source de ce contenu se trouve sur GitHub, où vous pouvez également créer et examiner les problèmes et les demandes de tirage. Pour plus d’informations, consultez notre guide du contributeur.
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