ContextMenu 樣式和範本
本主題說明 ContextMenu 控制項的樣式和範本。 您可以修改預設 ControlTemplate,為控制項提供唯一的外觀。 如需詳細資訊,請參閱建立控制項的範本。
ContextMenu 組件
ContextMenu 控制項沒有任何具名組件。
當您為 ContextMenu 建立 ControlTemplate 時,您的範本可能會在 ScrollViewer 內包含 ItemsPresenter。 (ItemsPresenter 會顯示 ContextMenu 中的每個項目;ScrollViewer 會在控制項內啟用捲動)。 如果 ItemsPresenter 不是 ScrollViewer 的直接子系,則您必須將 ItemsPresenter 命名為 ItemsPresenter
。
ContextMenu 狀態
下表列出 ContextMenu 控制項的視覺狀態。
VisualState 名稱 | VisualStateGroup 名稱 | 描述 |
---|---|---|
有效 | ValidationStates | 控制項會使用 Validation 類別,且 Validation.HasError 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 。 |
ContextMenu ControlTemplate 範例
下列範例顯示如何定義 ContextMenu 控制項的 ControlTemplate。
<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 使用下列資源。
<!--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。