ContextMenu 样式和模板

本主题介绍 ContextMenu 控件的样式和模板。 可以修改默认 ControlTemplate，使控件具有唯一的外观。 有关详细信息，请参阅 为控件创建模板。

ContextMenu 部件

ContextMenu 控件没有任何命名的部件。

当你为 ControlTemplate创建 ContextMenu 时，模板可能在 ItemsPresenter中包含一个 ScrollViewer。 （ItemsPresenter 显示 ContextMenu中的每个项;ScrollViewer 在控件内启用滚动）。 如果 ItemsPresenter 不是 ScrollViewer的直接子级，则必须给 ItemsPresenter 赋予名称 ItemsPresenter。

上下文菜单状态

下表列出了 ContextMenu 控件的视觉状态。

ContextMenu ControlTemplate 示例

以下示例演示如何为 ControlTemplate 控件定义 ContextMenu。

<Style TargetType="{x:Type ContextMenu}">
  <Setter Property="SnapsToDevicePixels"
          Value="True" />
  <Setter Property="OverridesDefaultStyle"
          Value="True" />
  <Setter Property="Grid.IsSharedSizeScope"
          Value="true" />
  <Setter Property="HasDropShadow"
          Value="True" />
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type ContextMenu}">
        <Border x:Name="Border"
                Background="{StaticResource MenuPopupBrush}"
                BorderThickness="1">
          <Border.BorderBrush>
            <SolidColorBrush Color="{StaticResource BorderMediumColor}" />
          </Border.BorderBrush>
          <StackPanel IsItemsHost="True"
                      KeyboardNavigation.DirectionalNavigation="Cycle" />
        </Border>
        <ControlTemplate.Triggers>
          <Trigger Property="HasDropShadow"
                   Value="true">
            <Setter TargetName="Border"
                    Property="Padding"
                    Value="0,3,0,3" />
            <Setter TargetName="Border"
                    Property="CornerRadius"
                    Value="4" />
          </Trigger>
        </ControlTemplate.Triggers>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

ControlTemplate 使用以下资源。

<!--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>

有关完整示例，请参阅使用 ControlTemplates 设置样式示例。

另请参阅

• Style
• ControlTemplate
• 控件样式和模板
• 控件自定义
• 样式设计与模板制作
• 为控件创建模板