xaml - 删除弹出控件内 ListViewItem 上的填充

Question

当我按下按钮时，我会显示以下弹出窗口

<Flyout x:Name="saveDiscardMenu" Placement="Bottom" >
        <Grid >
            <Grid.RowDefinitions>
                <RowDefinition />
                <RowDefinition />
            </Grid.RowDefinitions>
            <ListView Name="SaveDiscardList" ItemClick="SaveDiscardList_ItemClick" >
                <ListViewItem Style="{StaticResource ListViewItemPDF}">
                    <TextBlock x:Uid="SaveChanges" Name="saveChanges"  Grid.Row="0" Tapped="saveChanges_Tapped"></TextBlock>
                </ListViewItem>
                <ListViewItem Style="{StaticResource ListViewItemPDF}">
                    <TextBlock x:Uid="DiscardChanges" Name="discardChanges" Grid.Row="1" Margin="0,20,0,0" Tapped="discardChanges_Tapped" ></TextBlock>
                </ListViewItem>
            </ListView>
        </Grid>
    </Flyout>

看起来像这样

我用它作为我的 ListViewItem 样式

<Style TargetType="ListViewItem" x:Key="ListViewItemPDF">
    <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
    <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
    <Setter Property="Background" Value="Transparent"/>
    <Setter Property="TabNavigation" Value="Local"/>
    <Setter Property="IsHoldingEnabled" Value="True"/>
    <Setter Property="Margin" Value="0,0,0,0"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch" />
    <Setter Property="VerticalContentAlignment" Value="Stretch" />
    <Setter Property="Padding" Value="0" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="ListViewItem">
                <ListViewItemPresenter
                ContentTransitions="{TemplateBinding ContentTransitions}"
                Padding="{TemplateBinding Padding}"
                SelectionCheckMarkVisualEnabled="True"
                CheckHintBrush="{ThemeResource ListViewItemCheckHintThemeBrush}"
                CheckSelectingBrush="{ThemeResource ListViewItemCheckSelectingThemeBrush}"
                CheckBrush="{ThemeResource ListViewItemCheckThemeBrush}"
                DragBackground="{ThemeResource ListViewItemDragBackgroundThemeBrush}"
                DragForeground="{ThemeResource ListViewItemDragForegroundThemeBrush}"
                FocusBorderBrush="{ThemeResource ListViewItemFocusBorderThemeBrush}"
                PlaceholderBackground="{ThemeResource ListViewItemPlaceholderBackgroundThemeBrush}"
                PointerOverBackground="{StaticResource MyLightBlue}"
                SelectedBorderThickness="{ThemeResource ListViewItemCompactSelectedBorderThemeThickness}"
                SelectedBackground="{ThemeResource ListViewItemSelectedBackgroundThemeBrush}"
                SelectedForeground="{ThemeResource ListViewItemSelectedForegroundThemeBrush}"
                SelectedPointerOverBackground="{ThemeResource ListViewItemSelectedPointerOverBackgroundThemeBrush}"
                SelectedPointerOverBorderBrush="{ThemeResource ListViewItemSelectedPointerOverBorderThemeBrush}"
                DisabledOpacity="{ThemeResource ListViewItemDisabledThemeOpacity}"
                DragOpacity="{ThemeResource ListViewItemDragThemeOpacity}"
                ReorderHintOffset="{ThemeResource ListViewItemReorderHintThemeOffset}"
                HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
                PointerOverBackgroundMargin="1"
                ContentMargin="4" />
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

我想知道的是如何删除每个项目似乎具有的左右填充，我尝试将边距和填充设置为 0，但项目两侧之间似乎总是有一个空格，弹出按钮的边缘。

Answer 1

因为我刚刚因为在评论中快速回答的坏习惯而受到批评......

查看 default control style template 的结构对于 FlyoutPresenter我们注意到有一个填充绑定(bind)到一个资源；

<Thickness x:Key="FlyoutContentThemePadding">12,11,12,12</Thickness>

当您发现弹出内容有点被压扁时，这通常是罪魁祸首。是的，ListView 和其他 ItemsControl 变体通常都有自己的模板化 Paddings/Margins，它们可能会产生干扰，但我们在其他模板化控件中嵌入的内容越多，需要排序以找到罪魁祸首的层就越多。

很高兴有帮助。 :)