如何在 MenuFlyout 中禁用 ZoomOut 效果

Question

在 silverlight 中，上下文菜单曾经有一个 属性 IsZoomEnabled，用于定义当 ContextMenu 出现时是否会出现缩小效果，但在 winrt 中 xaml 我们有 MenuFlyout 而没有任何这样的 属性。我应该如何禁用此效果？

这是 MenuFlyout 的默认模板

<!-- Default style for Windows.UI.Xaml.Controls.MenuFlyoutPresenter -->
<Style TargetType="MenuFlyoutPresenter">
    <Setter Property="RequestedTheme" Value="Light" />
    <Setter Property="Background" Value="{ThemeResource FlyoutBackgroundThemeBrush}" />
    <Setter Property="BorderBrush" Value="{ThemeResource FlyoutBorderThemeBrush}" />
    <Setter Property="BorderThickness" Value="{ThemeResource FlyoutBorderThemeThickness}" />
    <Setter Property="Padding" Value="{ThemeResource MenuFlyoutPresenterThemePadding}" />
    <Setter Property="ScrollViewer.HorizontalScrollMode" Value="Disabled" />
    <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Disabled" />
    <Setter Property="ScrollViewer.VerticalScrollMode" Value="Auto" />
    <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto" />
    <Setter Property="ScrollViewer.IsHorizontalRailEnabled" Value="False" />
    <Setter Property="ScrollViewer.IsVerticalRailEnabled" Value="False" />
    <Setter Property="ScrollViewer.ZoomMode" Value="Disabled" />
    <Setter Property="MinWidth" Value="{ThemeResource FlyoutThemeMinWidth}" />
    <Setter Property="MaxWidth" Value="{ThemeResource FlyoutThemeMaxWidth}" />
    <Setter Property="MinHeight" Value="{ThemeResource FlyoutThemeMinHeight}" />
    <Setter Property="MaxHeight" Value="{ThemeResource FlyoutThemeMaxHeight}" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="MenuFlyoutPresenter">
                <Border Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}">
                    <ScrollViewer Padding="{TemplateBinding Padding}"
                                  HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}"
                                  HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}"
                                  VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}"
                                  VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}"
                                  IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}"
                                  IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}"
                                  ZoomMode="{TemplateBinding ScrollViewer.ZoomMode}"
                                  AutomationProperties.AccessibilityView="Raw">
                        <ItemsPresenter />
                    </ScrollViewer>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

Answer 1

您无法在 WinRT 中完成此操作。您可以创建自己的 UserControl 或仅使用 Flyout 复制 MenuFlyout 的行为。如果您想这样做，请尝试 this 教程。