UWP 文本框 VerticalContentAlignment

Question

我遇到了以下问题：我无法垂直对齐 TextBox 内的内容。我旁边有用于用户输入的图像图标和 TextBox，但 TextBox 中的文本具有默认的顶部对齐方式。我可以通过设置VerticalAlignment="Center" 来更改它，但是TextBox 的高度变得比我需要的要小（它应该有43px 的高度）。我试过VerticalContentAlignment="Center，但它也不起作用。我只知道一种可能的解决方案：在 TextBox 中设置 padding，但我不喜欢这个想法。也许还有其他我不知道的解决方案？

提前致谢！

这是我的部分代码：

<Grid Margin="15,0,15,10">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="*" />
                </Grid.ColumnDefinitions>
                <Image Grid.Column="0" 
                       Source="/Assets/TextInputIcons/Money.png" 
                       Style="{StaticResource InputFieldIconsStyle}" />
                <TextBox Grid.Column="1" 
                         PlaceholderText="Sum" 
                         Style="{StaticResource NumberedTextBox}" />
            </Grid>

和示例图片：

Answer 1

试试：

<TextBlock Text="Text" VerticalAlignment="Center" TextLineBounds="TrimToCapHeight"/>

或

<TextBlock Text="Text" VerticalAlignment="Center" TextLineBounds="Tight"/>

Answer 2

您必须编辑默认模板才能使其正常工作，您会注意到那里有一个ScrollViewer，如果您设置了VerticalAlignment="True"，那么它应该可以解决问题，但是，我注意到我的其中一个行为非常奇怪由于某种原因，内容一直在疯狂闪烁的文本框。

因为无论如何我都不需要ScrollViewer，而您似乎也不需要，所以我只是用ContentPresenter 替换它，然后设置它的VerticalContentAlignment="True"。

您可以查看Sapan's answer 以查看默认样式的外观，采用该样式，将ScrollViewer 替换为ContentPresenter，删除损坏的XAML，然后添加VerticalContentAlignment="True"。

看起来像这样：

<ContentPresenter x:Name="ContentElement" Grid.Column="1" Grid.Row="1" 
                  AutomationProperties.AccessibilityView="Raw" 
                  Margin="{TemplateBinding BorderThickness}" 
                  Padding="{TemplateBinding Padding}" 
                  VerticalContentAlignment="Center"/>

你会认为这会更容易完成......

Answer 3

可以通过创建如下样式轻松完成：

• 右键单击文本框，编辑模板 => 创建副本。
• 在生成样式的底部，查找 (ScrollViewer x:Name="ContentElement") 的内容和 (ContentControl x:Name="PlaceholderTextContentPresenter")用于文本占位符。将 (VerticalAlignment="Center") 添加到它们。

例子：

<Page.Resources>
        <Style x:Key="CenterTextBoxStyle" TargetType="TextBox">
            <Setter Property="MinWidth" Value="{ThemeResource TextControlThemeMinWidth}"/>
            <Setter Property="MinHeight" Value="{ThemeResource TextControlThemeMinHeight}"/>
            <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>
            <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundAltHighBrush}"/>
            <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundChromeDisabledLowBrush}"/>
            <Setter Property="SelectionHighlightColor" Value="{ThemeResource SystemControlHighlightAccentBrush}"/>
            <Setter Property="BorderThickness" Value="{ThemeResource TextControlBorderThemeThickness}"/>
            <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>
            <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>
            <Setter Property="ScrollViewer.HorizontalScrollMode" Value="Auto"/>
            <Setter Property="ScrollViewer.VerticalScrollMode" Value="Auto"/>
            <Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Hidden"/>
            <Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Hidden"/>
            <Setter Property="ScrollViewer.IsDeferredScrollingEnabled" Value="False"/>
            <Setter Property="Padding" Value="{ThemeResource TextControlThemePadding}"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="TextBox">
                        <Grid>
                            <Grid.Resources>
                                <Style x:Name="DeleteButtonStyle" TargetType="Button">
                                    <Setter Property="Template">
                                        <Setter.Value>
                                            <ControlTemplate TargetType="Button">
                                                <Grid x:Name="ButtonLayoutGrid" BorderBrush="{ThemeResource TextBoxButtonBorderThemeBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{ThemeResource TextBoxButtonBackgroundThemeBrush}">
                                                    <VisualStateManager.VisualStateGroups>
                                                        <VisualStateGroup x:Name="CommonStates">
                                                            <VisualState x:Name="Normal"/>
                                                            <VisualState x:Name="PointerOver">
                                                                <Storyboard>
                                                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="GlyphElement">
                                                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}"/>
                                                                    </ObjectAnimationUsingKeyFrames>
                                                                </Storyboard>
                                                            </VisualState>
                                                            <VisualState x:Name="Pressed">
                                                                <Storyboard>
                                                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="ButtonLayoutGrid">
                                                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}"/>
                                                                    </ObjectAnimationUsingKeyFrames>
                                                                    <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="GlyphElement">
                                                                        <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAltChromeWhiteBrush}"/>
                                                                    </ObjectAnimationUsingKeyFrames>
                                                                </Storyboard>
                                                            </VisualState>
                                                            <VisualState x:Name="Disabled">
                                                                <Storyboard>
                                                                    <DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="ButtonLayoutGrid"/>
                                                                </Storyboard>
                                                            </VisualState>
                                                        </VisualStateGroup>
                                                    </VisualStateManager.VisualStateGroups>
                                                    <TextBlock x:Name="GlyphElement" AutomationProperties.AccessibilityView="Raw" Foreground="{ThemeResource SystemControlForegroundChromeBlackMediumBrush}" FontStyle="Normal" FontSize="12" FontFamily="{ThemeResource SymbolThemeFontFamily}" HorizontalAlignment="Center" Text="&#xE10A;" VerticalAlignment="Center"/>
                                                </Grid>
                                            </ControlTemplate>
                                        </Setter.Value>
                                    </Setter>
                                </Style>
                            </Grid.Resources>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="Auto"/>
                            </Grid.ColumnDefinitions>
                            <Grid.RowDefinitions>
                                <RowDefinition Height="Auto"/>
                                <RowDefinition Height="*"/>
                            </Grid.RowDefinitions>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="HeaderContentPresenter">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseMediumLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="BackgroundElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledTransparentBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="BorderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="BorderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="PlaceholderTextContentPresenter">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledChromeDisabledLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Normal"/>
                                    <VisualState x:Name="PointerOver">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="BorderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightChromeAltLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundHoverOpacity}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="Focused">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="PlaceholderTextContentPresenter">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlPageTextChromeBlackMediumLowBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="BackgroundElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundChromeWhiteBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Opacity" Storyboard.TargetName="BackgroundElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource TextControlBackgroundFocusedOpacity}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="BorderElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightAccentBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlForegroundChromeBlackHighBrush}"/>
                                            </ObjectAnimationUsingKeyFrames>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="RequestedTheme" Storyboard.TargetName="ContentElement">
                                                <DiscreteObjectKeyFrame KeyTime="0" Value="Light"/>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="ButtonStates">
                                    <VisualState x:Name="ButtonVisible">
                                        <Storyboard>
                                            <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="DeleteButton">
                                                <DiscreteObjectKeyFrame KeyTime="0">
                                                    <DiscreteObjectKeyFrame.Value>
                                                        <Visibility>Visible</Visibility>
                                                    </DiscreteObjectKeyFrame.Value>
                                                </DiscreteObjectKeyFrame>
                                            </ObjectAnimationUsingKeyFrames>
                                        </Storyboard>
                                    </VisualState>
                                    <VisualState x:Name="ButtonCollapsed"/>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Border x:Name="BackgroundElement" Background="{TemplateBinding Background}" Grid.ColumnSpan="2" Margin="{TemplateBinding BorderThickness}" Opacity="{ThemeResource TextControlBackgroundRestOpacity}" Grid.Row="1" Grid.RowSpan="1"/>
                            <Border x:Name="BorderElement" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="2" Grid.Row="1" Grid.RowSpan="1"/>
                            <ContentPresenter x:Name="HeaderContentPresenter" Grid.ColumnSpan="2" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Foreground="{ThemeResource SystemControlForegroundBaseHighBrush}" FontWeight="Normal" Margin="0,0,0,8" Grid.Row="0" Visibility="Collapsed" x:DeferLoadStrategy="Lazy"/>
                            <ScrollViewer x:Name="ContentElement" VerticalAlignment="Center" AutomationProperties.AccessibilityView="Raw" HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" IsTabStop="False" IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}" IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}" IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}" Margin="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" Grid.Row="1" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}" VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}" ZoomMode="Disabled"/>
                            <ContentControl x:Name="PlaceholderTextContentPresenter" VerticalAlignment="Center" Grid.ColumnSpan="2" Content="{TemplateBinding PlaceholderText}" Foreground="{ThemeResource SystemControlPageTextBaseMediumBrush}" IsHitTestVisible="False" IsTabStop="False" Margin="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" Grid.Row="1"/>
                            <Button x:Name="DeleteButton" BorderThickness="{TemplateBinding BorderThickness}" Grid.Column="1" FontSize="{TemplateBinding FontSize}" IsTabStop="False" Margin="{ThemeResource HelperButtonThemePadding}" MinWidth="34" Grid.Row="1" Style="{StaticResource DeleteButtonStyle}" Visibility="Collapsed" VerticalAlignment="Stretch"/>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </Page.Resources>

这样 Text 和 PlaceholderText 始终保持在中心，无论 TextBox 的高度或字体如何。

Answer 4

我有和你一样的问题，我知道是字体大小错误。TextBox可以让它的高度确定字体大小，但是你设置VerticalContentAlignment="Center" 我有一个解决方案，可以制作边框

    <Border Grid.Column="1">
        <TextBox/>
    </Border>

它的BorderThickness 作为TextBox 的BorderThickness 和它的画笔作为TextBox 的画笔。 你设置了 TextBox VerticalAlignment="Center" 和 BorderThickness ="0"