Win universal app 在通用Windows平台中调整时间选择器的大小

当诸如MaxWidth或Width之类的属性发生更改时，UWP中的时间选择器控件不会重新调整大小，我是否应该设置另一个属性，或者我是否需要找到解决方法？

经过一些调查，似乎您只能使用Padding属性更改时间选择器的大小。

经过一些调查，似乎您只能使用Padding属性更改计时器的大小。

您需要更改计时器的默认样式。例如，请在您的Page.Resources中添加以下样式。我唯一更改的值是MaxWidth到800-默认值是456。然后，您应该能够使用Width属性最大化控件

<Page.Resources>
    <!-- Default style for Windows.UI.Xaml.Controls.TimePicker -->
    <Style TargetType="TimePicker">
        <Setter Property="IsTabStop" Value="False" />
        <Setter Property="MinWidth" Value="242" />
        <Setter Property="MaxWidth" Value="800" />
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
        <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
        <Setter Property="HorizontalAlignment" Value="Left" />
        <Setter Property="VerticalAlignment" Value="Center"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TimePicker">
                    <StackPanel x:Name="LayoutRoot" Margin="{TemplateBinding Padding}">
                        <StackPanel.Resources>
                            <Style x:Key="TimePickerFlyoutButtonStyle" TargetType="Button">
                                <Setter Property="UseSystemFocusVisuals" Value="False" />
                                <Setter Property="Template">
                                    <Setter.Value>
                                        <ControlTemplate TargetType="Button">
                                            <Grid Background="{TemplateBinding Background}">
                                                <VisualStateManager.VisualStateGroups>
                                                    <VisualStateGroup x:Name="CommonStates">
                                                        <VisualState x:Name="Normal" />
                                                        <VisualState x:Name="PointerOver">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlPageBackgroundAltMediumBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Pressed">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Disabled">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                    </VisualStateGroup>
                                                    <VisualStateGroup x:Name="FocusStates">
                                                        <VisualState x:Name="Focused">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Unfocused" />
                                                        <VisualState x:Name="PointerFocused" />
                                                    </VisualStateGroup>
                                                </VisualStateManager.VisualStateGroups>
                                                <ContentPresenter x:Name="ContentPresenter"
                                                              BorderBrush="{ThemeResource SystemControlForegroundBaseMediumLowBrush}"
                                                              Background="{ThemeResource SystemControlBackgroundAltMediumLowBrush}"
                                                              BorderThickness="2"
                                                              Content="{TemplateBinding Content}"
                                                              Foreground="{TemplateBinding Foreground}"
                                                              HorizontalContentAlignment="Stretch"
                                                              VerticalContentAlignment="Stretch"
                                                              AutomationProperties.AccessibilityView="Raw"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </Setter.Value>
                                </Setter>
                            </Style>
                        </StackPanel.Resources>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal" />
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="HeaderContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="FirstColumnDivider"
                                                                   Storyboard.TargetProperty="Fill">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="SecondColumnDivider"
                                                                   Storyboard.TargetProperty="Fill">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <ContentPresenter x:Name="HeaderContentPresenter"
                                      x:DeferLoadStrategy="Lazy"
                                      Visibility="Collapsed"
                                      Content="{TemplateBinding Header}"
                                      ContentTemplate="{TemplateBinding HeaderTemplate}"
                                      Margin="0,0,0,8"
                                      Foreground="{ThemeResource SystemControlForegroundBaseHighBrush}" 
                                      AutomationProperties.AccessibilityView="Raw" />
                        <Button x:Name="FlyoutButton"
                            Style="{StaticResource TimePickerFlyoutButtonStyle}"
                            Foreground="{TemplateBinding Foreground}"
                            Background="{TemplateBinding Background}"
                            IsEnabled="{TemplateBinding IsEnabled}"
                            HorizontalAlignment="Stretch"
                            HorizontalContentAlignment="Stretch">
                            <Grid x:Name="FlyoutButtonContentGrid">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" x:Name="FirstTextBlockColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="SecondTextBlockColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="ThirdTextBlockColumn" />
                                </Grid.ColumnDefinitions>

                                <Border x:Name="FirstPickerHost" Grid.Column="0">
                                    <TextBlock x:Name="HourTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>

                                <Rectangle x:Name="FirstColumnDivider" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="1" />

                                <Border x:Name="SecondPickerHost" Grid.Column="2">
                                    <TextBlock x:Name="MinuteTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>

                                <Rectangle x:Name="SecondColumnDivider" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="3" />

                                <Border x:Name="ThirdPickerHost" Grid.Column="4">
                                    <TextBlock x:Name="PeriodTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>
                            </Grid>
                        </Button>
                    </StackPanel>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Page.Resources>

---

您需要更改计时器选择器的默认样式。例如，请在您的Page.Resources中添加以下样式。我唯一更改的值是MaxWidth到800-默认值是456。然后，您应该能够使用Width属性最大化控件

<Page.Resources>
    <!-- Default style for Windows.UI.Xaml.Controls.TimePicker -->
    <Style TargetType="TimePicker">
        <Setter Property="IsTabStop" Value="False" />
        <Setter Property="MinWidth" Value="242" />
        <Setter Property="MaxWidth" Value="800" />
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}" />
        <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}" />
        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
        <Setter Property="HorizontalAlignment" Value="Left" />
        <Setter Property="VerticalAlignment" Value="Center"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="TimePicker">
                    <StackPanel x:Name="LayoutRoot" Margin="{TemplateBinding Padding}">
                        <StackPanel.Resources>
                            <Style x:Key="TimePickerFlyoutButtonStyle" TargetType="Button">
                                <Setter Property="UseSystemFocusVisuals" Value="False" />
                                <Setter Property="Template">
                                    <Setter.Value>
                                        <ControlTemplate TargetType="Button">
                                            <Grid Background="{TemplateBinding Background}">
                                                <VisualStateManager.VisualStateGroups>
                                                    <VisualStateGroup x:Name="CommonStates">
                                                        <VisualState x:Name="Normal" />
                                                        <VisualState x:Name="PointerOver">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlPageBackgroundAltMediumBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Pressed">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Disabled">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="BorderBrush">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                    </VisualStateGroup>
                                                    <VisualStateGroup x:Name="FocusStates">
                                                        <VisualState x:Name="Focused">
                                                            <Storyboard>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Background">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightListAccentLowBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                                <ObjectAnimationUsingKeyFrames Storyboard.TargetName="ContentPresenter"
                                                                                               Storyboard.TargetProperty="Foreground">
                                                                    <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltBaseHighBrush}" />
                                                                </ObjectAnimationUsingKeyFrames>
                                                            </Storyboard>
                                                        </VisualState>
                                                        <VisualState x:Name="Unfocused" />
                                                        <VisualState x:Name="PointerFocused" />
                                                    </VisualStateGroup>
                                                </VisualStateManager.VisualStateGroups>
                                                <ContentPresenter x:Name="ContentPresenter"
                                                              BorderBrush="{ThemeResource SystemControlForegroundBaseMediumLowBrush}"
                                                              Background="{ThemeResource SystemControlBackgroundAltMediumLowBrush}"
                                                              BorderThickness="2"
                                                              Content="{TemplateBinding Content}"
                                                              Foreground="{TemplateBinding Foreground}"
                                                              HorizontalContentAlignment="Stretch"
                                                              VerticalContentAlignment="Stretch"
                                                              AutomationProperties.AccessibilityView="Raw"/>
                                            </Grid>
                                        </ControlTemplate>
                                    </Setter.Value>
                                </Setter>
                            </Style>
                        </StackPanel.Resources>
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal" />
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="HeaderContentPresenter"
                                                                   Storyboard.TargetProperty="Foreground">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="FirstColumnDivider"
                                                                   Storyboard.TargetProperty="Fill">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetName="SecondColumnDivider"
                                                                   Storyboard.TargetProperty="Fill">
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}" />
                                        </ObjectAnimationUsingKeyFrames>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <ContentPresenter x:Name="HeaderContentPresenter"
                                      x:DeferLoadStrategy="Lazy"
                                      Visibility="Collapsed"
                                      Content="{TemplateBinding Header}"
                                      ContentTemplate="{TemplateBinding HeaderTemplate}"
                                      Margin="0,0,0,8"
                                      Foreground="{ThemeResource SystemControlForegroundBaseHighBrush}" 
                                      AutomationProperties.AccessibilityView="Raw" />
                        <Button x:Name="FlyoutButton"
                            Style="{StaticResource TimePickerFlyoutButtonStyle}"
                            Foreground="{TemplateBinding Foreground}"
                            Background="{TemplateBinding Background}"
                            IsEnabled="{TemplateBinding IsEnabled}"
                            HorizontalAlignment="Stretch"
                            HorizontalContentAlignment="Stretch">
                            <Grid x:Name="FlyoutButtonContentGrid">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*" x:Name="FirstTextBlockColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="SecondTextBlockColumn" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="*" x:Name="ThirdTextBlockColumn" />
                                </Grid.ColumnDefinitions>

                                <Border x:Name="FirstPickerHost" Grid.Column="0">
                                    <TextBlock x:Name="HourTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>

                                <Rectangle x:Name="FirstColumnDivider" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="1" />

                                <Border x:Name="SecondPickerHost" Grid.Column="2">
                                    <TextBlock x:Name="MinuteTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>

                                <Rectangle x:Name="SecondColumnDivider" Fill="{ThemeResource SystemControlForegroundBaseLowBrush}" HorizontalAlignment="Center" Width="2" Grid.Column="3" />

                                <Border x:Name="ThirdPickerHost" Grid.Column="4">
                                    <TextBlock x:Name="PeriodTextBlock" TextAlignment="Center" Padding="0,3,0,5" FontFamily="{TemplateBinding FontFamily}" FontWeight="{TemplateBinding FontWeight}" FontSize="{TemplateBinding FontSize}" AutomationProperties.AccessibilityView="Raw"/>
                                </Border>
                            </Grid>
                        </Button>
                    </StackPanel>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Page.Resources>

---

根据项目的目标SDK，有不同的解决方法

当项目以Windows 10 1709 10.0.16299.0为目标时，设置计时器选择器的MinWidth属性足以减少其宽度

当项目以Windows 10 1803 10.0.17763.0为目标时，替换App.xaml文件中的默认TimePickerThemeMinWidth值可以实现以下目的：

      <ResourceDictionary.ThemeDictionaries>
    <ResourceDictionary x:Key="Default">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
    <ResourceDictionary x:Key="Dark">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
    <ResourceDictionary x:Key="Light">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
  </ResourceDictionary.ThemeDictionaries>

---

根据项目的目标SDK，有不同的解决方法

当项目以Windows 10 1709 10.0.16299.0为目标时，设置计时器选择器的MinWidth属性足以减少其宽度

当项目以Windows 10 1803 10.0.17763.0为目标时，替换App.xaml文件中的默认TimePickerThemeMinWidth值可以实现以下目的：

      <ResourceDictionary.ThemeDictionaries>
    <ResourceDictionary x:Key="Default">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
    <ResourceDictionary x:Key="Dark">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
    <ResourceDictionary x:Key="Light">
      <x:Double x:Key="TimePickerThemeMinWidth">140</x:Double>
    </ResourceDictionary>
  </ResourceDictionary.ThemeDictionaries>

---

我找到了一个调整时间选择器或日期选择器大小的非常简单的解决方法。我只是在它周围放了一个ViewBox，并指定了我想要的ViewBox的宽度和高度。Viewbox为您完成选择器控件的所有大小调整。易于理解的完成。

我找到了一个非常简单的方法来调整时间选择器或日期选择器的大小。我只是在它周围放了一个ViewBox，并指定了我想要的ViewBox的宽度和高度。Viewbox为您完成选择器控件的所有大小调整。易于理解的完成。

注意。您可以在C:\Program Files x86\Windows Kits\10\DesignTime\CommonConfiguration\Neutral\UAP\10.0.10240.0\GenericNote中找到所有默认样式。您可以在C:\Program Files x86\Windows Kits\10\DesignTime\CommonConfiguration\Neutral\UAP\10.0.10240.0\Generict中找到所有默认样式这是唯一可行的解决方案。简单得让人难以置信，还有额外的积分。谢谢这是唯一可行的解决办法。简单得让人难以置信，还有额外的积分。谢谢