Xaml 弹出型按钮中的日期选择器项目高度

如何在通用Windows平台中调整日期选择器弹出按钮中项目（LoopingSelectorItem）的高度？它总是44px

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这是给计时员的，但我希望能帮助你

    <Style TargetType="TimePickerFlyoutPresenter">
        <Setter Property="Width" Value="242" />
        <Setter Property="MinWidth" Value="242" />
        <Setter Property="MaxHeight" Value="396" />
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
        <Setter Property="FontWeight" Value="Normal" />
        <Setter Property="IsTabStop" Value="False" />
        <Setter Property="FontSize" Value="25" />
        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundChromeMediumLowBrush}" />
        <Setter Property="AutomationProperties.AutomationId" Value="TimePickerFlyoutPresenter" />
        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundTransparentBrush}" />
        <Setter Property="BorderThickness" Value="{ThemeResource DateTimeFlyoutBorderThickness}" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TimePickerFlyoutPresenter">
                    <Border x:Name="Background"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        MaxHeight="396">
                        <Grid x:Name="ContentPanel">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*" />
                           </Grid.RowDefinitions>

                            <Grid >
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" x:Name="FirstPickerHostColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="SecondPickerHostColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="ThirdPickerHostColumn" />
                                </Grid.ColumnDefinitions>
<!--********************************this line should change, Height Property-->
                                <Rectangle x:Name="HighlightRect" Height="44" Fill="{ThemeResource SystemControlHighlightListAccentLowBrush}" Grid.Column="0" Grid.ColumnSpan="5" VerticalAlignment="Center">
<!---->  
                                </Rectangle>

                                <Border x:Name="FirstPickerHost" Grid.Column="0" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>
                                <Rectangle x:Name="FirstPickerSpacing" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="1" >

                                </Rectangle>
                                <Border x:Name="SecondPickerHost" Grid.Column="2" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>
                                <Rectangle x:Name="SecondPickerSpacing" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="3" >

                                </Rectangle>
                                <Border x:Name="ThirdPickerHost" Grid.Column="4" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>

                            </Grid>

                            <Grid Grid.Row="1"  Visibility="Collapsed">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" />
                                    <ColumnDefinition Width="*" />
                                </Grid.ColumnDefinitions>
                                <Rectangle Height="2" VerticalAlignment="Top" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" Grid.ColumnSpan="2" />

                                <Button x:Name="AcceptButton" Grid.Column="0" Content="&#xE8FB;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="16" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Margin="0,2,0,0" />
                                <Button x:Name="DismissButton" Grid.Column="1" Content="&#xE711;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="16" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Margin="0,2,0,0" />
                            </Grid>
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

---

这是给时间采集者的，但我希望能帮助你

    <Style TargetType="TimePickerFlyoutPresenter">
        <Setter Property="Width" Value="242" />
        <Setter Property="MinWidth" Value="242" />
        <Setter Property="MaxHeight" Value="396" />
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
        <Setter Property="FontWeight" Value="Normal" />
        <Setter Property="IsTabStop" Value="False" />
        <Setter Property="FontSize" Value="25" />
        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundChromeMediumLowBrush}" />
        <Setter Property="AutomationProperties.AutomationId" Value="TimePickerFlyoutPresenter" />
        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundTransparentBrush}" />
        <Setter Property="BorderThickness" Value="{ThemeResource DateTimeFlyoutBorderThickness}" />
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TimePickerFlyoutPresenter">
                    <Border x:Name="Background"
                        Background="{TemplateBinding Background}"
                        BorderBrush="{TemplateBinding BorderBrush}"
                        BorderThickness="{TemplateBinding BorderThickness}"
                        MaxHeight="396">
                        <Grid x:Name="ContentPanel">
                            <Grid.RowDefinitions>
                                <RowDefinition Height="*" />
                           </Grid.RowDefinitions>

                            <Grid >
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" x:Name="FirstPickerHostColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="SecondPickerHostColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="ThirdPickerHostColumn" />
                                </Grid.ColumnDefinitions>
<!--********************************this line should change, Height Property-->
                                <Rectangle x:Name="HighlightRect" Height="44" Fill="{ThemeResource SystemControlHighlightListAccentLowBrush}" Grid.Column="0" Grid.ColumnSpan="5" VerticalAlignment="Center">
<!---->  
                                </Rectangle>

                                <Border x:Name="FirstPickerHost" Grid.Column="0" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>
                                <Rectangle x:Name="FirstPickerSpacing" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="1" >

                                </Rectangle>
                                <Border x:Name="SecondPickerHost" Grid.Column="2" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>
                                <Rectangle x:Name="SecondPickerSpacing" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="3" >

                                </Rectangle>
                                <Border x:Name="ThirdPickerHost" Grid.Column="4" >
                                    <interact:Interaction.Behaviors>
                                        <interactcore:EventTriggerBehavior EventName="Tapped">
                                            <interactcore:InvokeCommandAction Command="{Binding ClosePopUp}"/>
                                        </interactcore:EventTriggerBehavior>
                                    </interact:Interaction.Behaviors>
                                </Border>

                            </Grid>

                            <Grid Grid.Row="1"  Visibility="Collapsed">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" />
                                    <ColumnDefinition Width="*" />
                                </Grid.ColumnDefinitions>
                                <Rectangle Height="2" VerticalAlignment="Top" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" Grid.ColumnSpan="2" />

                                <Button x:Name="AcceptButton" Grid.Column="0" Content="&#xE8FB;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="16" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Margin="0,2,0,0" />
                                <Button x:Name="DismissButton" Grid.Column="1" Content="&#xE711;" FontFamily="{ThemeResource SymbolThemeFontFamily}" FontSize="16" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Style="{StaticResource DateTimePickerFlyoutButtonStyle}" Margin="0,2,0,0" />
                            </Grid>
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>

您是否尝试过使用样式？我希望有人知道我可以更改什么，因为我尝试了所有方法，但都没有效果，所以我来这里询问。另外，我根本不是xaml等的noob。那么我想你只有一个选择。。去混合。。编辑副本并重新分析。样式不影响此高度。它总是44px。我改变了一切：DatePickerStyle->DatePickerLyoutPresenterStyle->LoopingSelectorStyle->LoopingSelectorItemStyle。可能在控件的代码中。请尝试使用visualtree帮助程序。。或者尝试使用visualtrere类查找所有子元素。。希望它能给你带来一些帮助。你尝试过使用风格吗？我希望有人知道我到底能改变什么，因为我已经尝试了所有的方法，但都没有用，所以我来这里询问。另外，我根本不是xaml等的noob。那么我想你只有一个选择。。去混合。。编辑副本并重新分析。样式不影响此高度。它总是44px。我改变了一切：DatePickerStyle->DatePickerLyoutPresenterStyle->LoopingSelectorStyle->LoopingSelectorItemStyle。可能在控件的代码中。请尝试使用visualtree帮助程序。。或者尝试使用visualtrere类查找所有子元素。。希望它能提供一些线索