ScrollViewer Styles and Templates

 

This topic describes the styles and templates for the ScrollViewer control. You can modify the default ControlTemplate to give the control a unique appearance. For more information, see Customizing the Appearance of an Existing Control by Creating a ControlTemplate.

The following table lists the named parts for the ScrollViewer control.

PartTypeDescription
PART_ScrollContentPresenterScrollContentPresenterThe placeholder for content in the ScrollViewer.
PART_HorizontalScrollBarScrollBarThe ScrollBar used to scroll the content horizontally.
PART_VerticalScrollBarScrollBarThe ScrollBar used to scroll the content vertically.

The following table lists the visual states for the ScrollViewer control.

VisualState NameVisualStateGroup NameDescription
ValidValidationStatesThe control uses the Validation class and the Validation.HasError attached property is false.
InvalidFocusedValidationStatesThe Validation.HasError attached property is true has the control has focus.
InvalidUnfocusedValidationStatesThe Validation.HasError attached property is true has the control does not have focus.

The following example shows how to define a ControlTemplate for the ScrollViewer control.

  <Style x:Key="LeftScrollViewer"
         TargetType="{x:Type ScrollViewer}">
    <Setter Property="OverridesDefaultStyle"
            Value="True" />
    <Setter Property="Template">
      <Setter.Value>
        <ControlTemplate TargetType="{x:Type ScrollViewer}">
          <Grid>
            <Grid.ColumnDefinitions>
              <ColumnDefinition Width="Auto" />
              <ColumnDefinition />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
              <RowDefinition />
              <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Border Grid.Column="1"
                    BorderThickness="0,1,1,1">
              <Border.BorderBrush>
                <SolidColorBrush Color="{DynamicResource BorderMediumColor}" />
              </Border.BorderBrush>
              <ScrollContentPresenter />
            </Border>
            <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>

The preceding example uses one or more of the following resources.

  <!--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>

For the complete sample, see Styling with ControlTemplates Sample.

Style
ControlTemplate
Control Styles and Templates
Control Customization
Styling and Templating
Customizing the Appearance of an Existing Control by Creating a ControlTemplate

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