Xaml DatePicker弹出式演示器样式

我正在寻找一种编辑DatePickerLyoutPresenter滚动框样式的方法。我想将文本更改为白色箭头按钮，并更改指针颜色，但似乎找不到它。它会使用flipview样式吗？我正在使用xaml/C#

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从Visual Studio的Live Visual树中，我们可以在其中找到

DatePickerFlyoutPresenter

use

LoopingSelector

因此，要更改箭头按钮中文本的颜色，我们可以更改

Windows.UI.Xaml.Controls.Primitives.LoopingSelector的模板，我们可以在generic.Xaml中找到它，这在

C:\Program Files（x86）\Windows Kits\10\DesignTime\CommonConfiguration\Neutral\UAP\10.0.10240.0\Generic

或

C:\Program Files（x86）\Windows Kits\10\DesignTime\CommonConfiguration\Neutral\UAP\10.0.10586.0\Generic

此位置取决于您安装的Windows 10 SDK

Windows.UI.Xaml.Controls.Primitives.LoopingSelector
的默认样式如下：

<!-- Default style for Windows.UI.Xaml.Controls.Primitives.LoopingSelector -->
<Style TargetType="LoopingSelector">
    <Setter Property="ShouldLoop" Value="True" />
    <Setter Property="UseSystemFocusVisuals" Value="True" />
    <Setter Property="ItemTemplate">
        <Setter.Value>
            <DataTemplate>
                <StackPanel VerticalAlignment="Center" >
                    <TextBlock Text="{Binding PrimaryText}" FontFamily="{ThemeResource ContentControlThemeFontFamily}" FontSize="15" />
                </StackPanel>
            </DataTemplate>
        </Setter.Value>
    </Setter>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="Control">
                <Grid>
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal" />
                            <VisualState x:Name="PointerOver">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="UpButton"
                                                                       Storyboard.TargetProperty="Visibility">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="DownButton"
                                                                       Storyboard.TargetProperty="Visibility">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="Visible" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <ScrollViewer x:Name="ScrollViewer" VerticalSnapPointsType="Mandatory" VerticalSnapPointsAlignment="Near" VerticalScrollBarVisibility="Hidden"
                        HorizontalScrollMode="Disabled" ZoomMode="Disabled" Template="{StaticResource ScrollViewerScrollBarlessTemplate}" />
                    <RepeatButton x:Name="UpButton" Content="&#xE70E;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="8" Height="16" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Top" Visibility="Collapsed" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Background="{ThemeResource SystemControlBackgroundChromeMediumBrush}" IsTabStop="False" />
                    <RepeatButton x:Name="DownButton" Content="&#xE70D;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="8" Height="16" Padding="0" HorizontalAlignment="Stretch" VerticalAlignment="Bottom" Visibility="Collapsed" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Background="{ThemeResource SystemControlBackgroundChromeMediumBrush}" IsTabStop="False" />
                </Grid>

            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

在颜色上更改指针也是类似的。我们可以更改
Windows.UI.Xaml.Controls.Primitives.loopingselection项目的模板
：

<!-- Default style for Windows.UI.Xaml.Controls.Primitives.LoopingSelectorItem -->
<Style TargetType="LoopingSelectorItem">
    <Setter Property="HorizontalAlignment" Value="Stretch" />
    <Setter Property="VerticalAlignment" Value="Stretch" />
    <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
    <Setter Property="IsTabStop" Value="False" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="LoopingSelectorItem">
                <Grid x:Name="Root" Background="Transparent" >
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal" />
                            <VisualState x:Name="Expanded" />
                            <VisualState x:Name="Selected" >
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="PointerOver">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Root"
                                                                   Storyboard.TargetProperty="Background">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Pressed">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Root"
                                                                   Storyboard.TargetProperty="Background">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListMediumBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <Grid.RenderTransform>
                        <ScaleTransform x:Name="ContentScaleTransform"/>
                    </Grid.RenderTransform>
                    <ContentPresenter x:Name="ContentPresenter" Foreground="{TemplateBinding Foreground}"
                        Content="{TemplateBinding Content}" ContentTemplate="{TemplateBinding ContentTemplate}"
                        Padding="{TemplateBinding Padding}" Margin="2,0,2,0" 
                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" AutomationProperties.AccessibilityView="Raw"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>



在这个模板中，我们可以在名为
PointerOver
的
VisualState
中更改
背景
，以自定义颜色上方的指针。
我对使用live visual tree有点陌生，并尝试过查看它是什么，但我想我需要单击datepicker查看datepickerpresenter才能找到它。循环选择是我需要的。只是不知道它叫什么，这一切都正常。除了年份循环选择在每个项目之间有一个小的差距。我认为这是因为一年没有循环。看看WinPhone 8.1和UWP有什么相似之处吗？我在generic.xaml或themeresources.xaml中没有看到任何类似的东西，但我可能在那些草堆中漏掉了针。
<!-- Default style for Windows.UI.Xaml.Controls.Primitives.LoopingSelectorItem -->
<Style TargetType="LoopingSelectorItem">
    <Setter Property="HorizontalAlignment" Value="Stretch" />
    <Setter Property="VerticalAlignment" Value="Stretch" />
    <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}" />
    <Setter Property="IsTabStop" Value="False" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="LoopingSelectorItem">
                <Grid x:Name="Root" Background="Transparent" >
                    <VisualStateManager.VisualStateGroups>
                        <VisualStateGroup x:Name="CommonStates">
                            <VisualState x:Name="Normal" />
                            <VisualState x:Name="Expanded" />
                            <VisualState x:Name="Selected" >
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="PointerOver">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Root"
                                                                   Storyboard.TargetProperty="Background">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListLowBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                            <VisualState x:Name="Pressed">
                                <Storyboard>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="Root"
                                                                   Storyboard.TargetProperty="Background">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListMediumBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                    </ObjectAnimationUsingKeyFrames>
                                </Storyboard>
                            </VisualState>
                        </VisualStateGroup>
                    </VisualStateManager.VisualStateGroups>
                    <Grid.RenderTransform>
                        <ScaleTransform x:Name="ContentScaleTransform"/>
                    </Grid.RenderTransform>
                    <ContentPresenter x:Name="ContentPresenter" Foreground="{TemplateBinding Foreground}"
                        Content="{TemplateBinding Content}" ContentTemplate="{TemplateBinding ContentTemplate}"
                        Padding="{TemplateBinding Padding}" Margin="2,0,2,0" 
                        HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
                        VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}" AutomationProperties.AccessibilityView="Raw"/>
                </Grid>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>