ScrollViewer 樣式和範本

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本主題描述控制項的 ScrollViewer 樣式和範本。 您可以修改預設值 ControlTemplate ，讓控制項具有唯一的外觀。 如需詳細資訊，請參閱 建立控制項 的範本。

ScrollViewer 元件

下表列出 控制項的 ScrollViewer 具名元件。

部分 類型 描述
PART_ScrollContentPresenter ScrollContentPresenter 中 ScrollViewer 內容的預留位置。
PART_HorizontalScrollBar ScrollBar ScrollBar用來水準捲動內容的 。
PART_VerticalScrollBar ScrollBar ScrollBar用來垂直捲動內容的 。

ScrollViewer 狀態

下表列出 控制項的 ScrollViewer 視覺狀態。

VisualState 名稱 VisualStateGroup 名稱 描述
有效 ValidationStates 控制項會使用 類別， Validation 而 Validation.HasError 附加屬性為 false 。
InvalidFocused ValidationStates 附加 Validation.HasError 屬性具有 true 控制項的焦點。
InvalidUnfocused ValidationStates 附加 Validation.HasError 屬性具有 true 控制項沒有焦點。

ScrollViewer ControlTemplate 範例

下列範例示範如何定義 ControlTemplate 控制項的 ScrollViewer 。

<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 CanContentScroll="{TemplateBinding CanContentScroll}" />
          </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>

上述範例使用下列一或多項資源。

<!--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>

如需完整的範例，請參閱使用 ControlTemplate 設定樣式範例。

另請參閱