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ListBox 樣式和範本

本主題說明 ListBox 控件項的樣式和範本。 您可以修改預設的 ControlTemplate,為控制項提供唯一的外觀。 如需詳細資訊,請參閱為控制項建立範本

ListBox 組件

ListBox 控制項沒有任何具名組件。

當您為 ControlTemplate 建立 ListBox 時,您的範本可能包含 ItemsPresenter 內的 ScrollViewer。 (ItemsPresenter 會顯示 ListBox 中的每個項目;ScrollViewer 會在控件項內啟用卷動)。 如果 ItemsPresenter 不是 ScrollViewer 的直接子項目,您必須為 ItemsPresenter 命名,ItemsPresenter

ListBox 狀態

下表列出 ListBox 控制項的視覺物件狀態。

VisualState 名稱 VisualStateGroup 名稱 描述
有效 ValidationStates 控制項有效。
InvalidFocused ValidationStates 控制項無效且已取得焦點。
InvalidUnfocused ValidationStates 控制項無效且未取得焦點。

ListBoxItem 組件

ListBoxItem 控制項沒有任何具名組件。

ListBoxItem 狀態

下表列出 ListBox 控制項的視覺物件狀態。

VisualState 名稱 VisualStateGroup 名稱 描述
Normal CommonStates 預設狀態。
MouseOver CommonStates 滑鼠指標移到控制項上。
已停用 CommonStates 項目已停用。
焦點 FocusStates 項目已取得焦點。
未取得焦點 FocusStates 項目未取得焦點。
未選取 SelectionStates 項目未獲選取。
Selected SelectionStates 項目目前已獲選取。
SelectedUnfocused SelectionStates 項目已獲選取,但未取得焦點。
有效 ValidationStates 控制項會使用 Validation 類別,且 Validation.HasError 的附加屬性為 false
InvalidFocused ValidationStates Validation.HasError 附加屬性為具有焦點控制項的 true
InvalidUnfocused ValidationStates Validation.HasError 附加屬性為不具有焦點控制項的 true

ListBox ControlTemplate 範例

下列範例顯示如何定義 ControlTemplateListBox 控制項的 ListBoxItem

<Style x:Key="{x:Type ListBox}"
       TargetType="ListBox">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="ScrollViewer.HorizontalScrollBarVisibility"
          Value="Auto" />
  <Setter Property="ScrollViewer.VerticalScrollBarVisibility"
          Value="Auto" />
  <Setter Property="ScrollViewer.CanContentScroll"
          Value="true" />
  <Setter Property="MinWidth"
          Value="120" />
  <Setter Property="MinHeight"
          Value="95" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="ListBox">
        <Border Name="Border"
                BorderThickness="1"
                CornerRadius="2">
          <Border.Background>
            <SolidColorBrush Color="{StaticResource ControlLightColor}" />
          </Border.Background>
          <Border.BorderBrush>
            <SolidColorBrush Color="{StaticResource BorderMediumColor}" />
          </Border.BorderBrush>
          <ScrollViewer Margin="0"
                        Focusable="false">
            <StackPanel Margin="2"
                        IsItemsHost="True" />
          </ScrollViewer>
        </Border>
        <ControlTemplate.Triggers>
          <Trigger Property="IsEnabled"
                   Value="false">
            <Setter TargetName="Border"
                    Property="Background">
              <Setter.Value>
                <SolidColorBrush Color="{StaticResource DisabledControlLightColor}" />
              </Setter.Value>
            </Setter>
            <Setter TargetName="Border"
                    Property="BorderBrush">
              <Setter.Value>
                <SolidColorBrush Color="{DynamicResource DisabledBorderLightColor}" />
              </Setter.Value>

            </Setter>
          </Trigger>
          <Trigger Property="IsGrouping"
                   Value="true">
            <Setter Property="ScrollViewer.CanContentScroll"
                    Value="false" />
          </Trigger>
        </ControlTemplate.Triggers>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<Style x:Key="{x:Type ListBoxItem}"
       TargetType="ListBoxItem">
  <Setter Property="SnapsToDevicePixels"
          Value="true" />
  <Setter Property="OverridesDefaultStyle"
          Value="true" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="ListBoxItem">
        <Border x:Name="Border"
                Padding="2"
                SnapsToDevicePixels="true">
          <Border.Background>
            <SolidColorBrush Color="Transparent" />
          </Border.Background>
          <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="SelectionStates">
              <VisualState x:Name="Unselected" />
              <VisualState x:Name="Selected">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource SelectedBackgroundColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
              <VisualState x:Name="SelectedUnfocused">
                <Storyboard>
                  <ColorAnimationUsingKeyFrames Storyboard.TargetName="Border"
                                                Storyboard.TargetProperty="(Panel.Background).
                    (SolidColorBrush.Color)">
                    <EasingColorKeyFrame KeyTime="0"
                                         Value="{StaticResource SelectedUnfocusedColor}" />
                  </ColorAnimationUsingKeyFrames>
                </Storyboard>
              </VisualState>
            </VisualStateGroup>
          </VisualStateManager.VisualStateGroups>
          <ContentPresenter />
        </Border>
      </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

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