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TA贡献1783条经验 获得超4个赞
简而言之,您需要为您的 TextBox 制作自定义样式。
步骤:转到“文档大纲 -> 右键单击您的文本框 -> 编辑模板 -> 编辑副本。”
然后,找到<Border x:Name="BorderElement">此样式中的元素并设置MinHeight您想要的元素。
<Page.Resources>
<Style x:Key="TextBoxStyle1" TargetType="TextBox">
...
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="TextBox">
<Grid>
...
<ContentPresenter x:Name="HeaderContentPresenter" ContentTemplate="{TemplateBinding HeaderTemplate}" Content="{TemplateBinding Header}" Grid.ColumnSpan="2" Grid.Column="0" FontWeight="Normal" Foreground="{ThemeResource TextControlHeaderForeground}" Margin="{StaticResource TextBoxTopHeaderMargin}" Grid.Row="0" TextWrapping="Wrap" VerticalAlignment="Top" Visibility="Collapsed" x:DeferLoadStrategy="Lazy" />
<Border x:Name="BorderElement" MinHeight="25" Background="{TemplateBinding Background}" BorderThickness="{TemplateBinding BorderThickness}" BorderBrush="{TemplateBinding BorderBrush}" CornerRadius="{TemplateBinding CornerRadius}" Grid.ColumnSpan="2" Grid.Column="0" Control.IsTemplateFocusTarget="True" MinWidth="{ThemeResource TextControlThemeMinWidth}" Grid.RowSpan="1" Grid.Row="1" />
<ScrollViewer x:Name="ContentElement" AutomationProperties.AccessibilityView="Raw" Grid.Column="0" HorizontalScrollBarVisibility="{TemplateBinding ScrollViewer.HorizontalScrollBarVisibility}" HorizontalScrollMode="{TemplateBinding ScrollViewer.HorizontalScrollMode}" IsDeferredScrollingEnabled="{TemplateBinding ScrollViewer.IsDeferredScrollingEnabled}" IsHorizontalRailEnabled="{TemplateBinding ScrollViewer.IsHorizontalRailEnabled}" IsTabStop="False" IsVerticalRailEnabled="{TemplateBinding ScrollViewer.IsVerticalRailEnabled}" Margin="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" Grid.Row="1" VerticalScrollMode="{TemplateBinding ScrollViewer.VerticalScrollMode}" VerticalScrollBarVisibility="{TemplateBinding ScrollViewer.VerticalScrollBarVisibility}" ZoomMode="Disabled" />
<TextBlock x:Name="PlaceholderTextContentPresenter" Grid.ColumnSpan="2" Grid.Column="0" Foreground="{Binding PlaceholderForeground, RelativeSource={RelativeSource Mode=TemplatedParent}, TargetNullValue={ThemeResource TextControlPlaceholderForeground}}" IsHitTestVisible="False" Margin="{TemplateBinding BorderThickness}" Padding="{TemplateBinding Padding}" Grid.Row="1" Text="{TemplateBinding PlaceholderText}" TextWrapping="{TemplateBinding TextWrapping}" TextAlignment="{TemplateBinding TextAlignment}" />
<Button x:Name="DeleteButton" AutomationProperties.AccessibilityView="Raw" BorderThickness="{TemplateBinding BorderThickness}" Grid.Column="1" FontSize="{TemplateBinding FontSize}" IsTabStop="False" MinWidth="34" Margin="{ThemeResource HelperButtonThemePadding}" Grid.Row="1" Style="{StaticResource DeleteButtonStyle}" VerticalAlignment="Stretch" Visibility="Collapsed" />
<ContentPresenter x:Name="DescriptionPresenter" AutomationProperties.AccessibilityView="Raw" Content="{TemplateBinding Description}" Grid.ColumnSpan="2" Grid.Column="0" Foreground="{ThemeResource SystemControlDescriptionTextForegroundBrush}" Grid.Row="2" x:Load="False" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Page.Resources>
<Grid>
<TextBox Style="{StaticResource TextBoxStyle1}" Height="25"></TextBox>
</Grid>
请注意,我只是为它更改了MinHeight,如果你输入它,你会发现它的文字显示不完整。如果你想让它看起来更好。你需要做更多的定制。
请阅读教程:创建自定义样式和控件模板以获取更多信息。
TA贡献1797条经验 获得超6个赞
这是 Windows 10 版本 1806(内部版本 17763)中的回归。以前的版本 - Fall creators update (build 16299) 没有这个问题。
按照上面的建议删除 TextBox 样式定义中 Border 元素上的 MinWidth="{ThemeResource TextControlThemeMinWidth}" 修复它。
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