没有标题空间的 WPF GroupBox
https://stackoverflow.com/questions/2110148
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很简单，我想要一个没有标题空间的 GroupBox
替代文本 http://www.freeimagehosting.net/uploads/1d3f80b749.png
最接近的是边框，但“默认情况下”边框不具有与组框相同的样式。
获得所需 GroupBox 的最简单方法（最少 xaml / 代码）是什么？
谢谢
解决方案
如果你真的不想要边框，那么可以有以下两种解决方案：
(1) 在 Blend 中编辑模板：
- 右键单击 GroupBox > 编辑模板 > 编辑副本 > 确定
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<Border.OpacityMask> <MultiBinding Converter="{StaticResource BorderGapMaskConverter}" ConverterParameter="7"> ...... </MultiBinding> </Border.OpacityMask>删除此（上述）部分..您刚刚删除了“间隙”
- 现在，如果您不设置标题（如示例中所示），这将起作用。但是，如果您设置标题，它将位于边框后面。所以要纠正这个问题，只需设置
Panel.ZIndex="-1"在包围您刚刚删除的部分的边框中（看起来像<Border BorderBrush="White" BorderThickness= ...)
(2) 使用复制的 GroupBox 并将其水平翻转并将其放置在原始 GroupBox 下方：
将此代码放在您的组框下方（假设您的组框的名称是“
OriginalGroupbox')<GroupBox Header="" Focusable="False" Panel.ZIndex="-1" Width="{Binding ActualWidth, ElementName=OriginalGroupbox}" Height="{Binding ActualHeight, ElementName=OriginalGroupbox}" IsEnabled="{Binding IsEnabled, ElementName=OriginalGroupbox}" RenderTransformOrigin="0.5,0.5"> <GroupBox.RenderTransform> <ScaleTransform ScaleX="-1"/> </GroupBox.RenderTransform> </GroupBox>将这两个 GroupBox 封装在
Grid像这样：<Grid> <GroupBox x:Name="OriginalGroupbox" Header="Mihir" ...> ... </GroupBox> <GroupBox Header="" Width="{Binding ActualWidth, ElementName=OriginalGroupbox}" ...> ... </GroupBox> </Grid>
其他提示
您可以通过改变你的边界有圆角和不同颜色的模拟组合框的样式。这里是一个边界，看起来相当接近分组框边框：
<Border BorderThickness="1" CornerRadius="4" Height="100" Width="100" Padding="5" BorderBrush="LightGray"><TextBlock>Border</TextBlock></Border>
大厦米希尔Gokani的回答，您可以更改默认模板触发器来头的填充改变什么，当标题为null或空。
使用在分组框下面的风格，应该修复它。
<BorderGapMaskConverter x:Key="BorderGapMaskConverter"/>
<Style x:Key="GroupBoxStyle" TargetType="{x:Type GroupBox}">
<Setter Property="BorderBrush" Value="#D5DFE5"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupBox}">
<Grid SnapsToDevicePixels="true">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="6"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="6"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="6"/>
</Grid.RowDefinitions>
<Border BorderBrush="Transparent" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="4" Grid.Column="0" CornerRadius="4" Grid.Row="1" Grid.RowSpan="3"/>
<Border x:Name="Header" Grid.Column="1" Padding="3,1,3,0" Grid.Row="0" Grid.RowSpan="2">
<ContentPresenter ContentSource="Header" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ContentPresenter Grid.ColumnSpan="2" Grid.Column="1" Margin="{TemplateBinding Padding}" Grid.Row="2" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
<Border BorderBrush="White" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="4" CornerRadius="4" Grid.Row="1" Grid.RowSpan="3">
<Border.OpacityMask>
<MultiBinding ConverterParameter="7" Converter="{StaticResource BorderGapMaskConverter}">
<Binding ElementName="Header" Path="ActualWidth"/>
<Binding Path="ActualWidth" RelativeSource="{RelativeSource Self}"/>
<Binding Path="ActualHeight" RelativeSource="{RelativeSource Self}"/>
</MultiBinding>
</Border.OpacityMask>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="3">
<Border BorderBrush="White" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2"/>
</Border>
</Border>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="Header" Value="{x:Null}">
<Setter TargetName="Header" Property="Padding" Value="0" />
</Trigger>
<Trigger Property="Header" Value="">
<Setter TargetName="Header" Property="Padding" Value="0" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
请注意唯一加成是：
<ControlTemplate.Triggers>
<Trigger Property="Header" Value="{x:Null}">
<Setter TargetName="Header" Property="Padding" Value="0" />
</Trigger>
<Trigger Property="Header" Value="">
<Setter TargetName="Header" Property="Padding" Value="0" />
</Trigger>
</ControlTemplate.Triggers>
我正在寻找一种类似的解决方案。我需要一组框样式在边境被关闭，只有当没有标题文字。
我不相信这是最好的解决方案，但它工作正常...
我们有一个转换器（作品与文本仅大气压）：
public class GroupBoxHeaderVisibilityConverter : IMultiValueConverter
{
#region IMultiValueConverter Members
public object Convert(object[] values, System.Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
ContentPresenter header = values[0] as ContentPresenter;
if (header != null)
{
string text = header.Content as string;
if (string.IsNullOrEmpty(text))
{
return 0.0;
}
}
return values[1];
}
public object[] ConvertBack(object value, System.Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
throw new System.NotImplementedException();
}
#endregion
}
和所述修改到组框样式：
<Border
x:Name="Header"
Grid.Column="1"
Grid.Row="0"
Grid.RowSpan="2"
Padding="3,1,3,0">
<Border.Tag>
<MultiBinding Converter="{StaticResource GroupBoxHeaderVisibilityConverter}">
<Binding Path="Content" ElementName="groupBoxLabel" />
<Binding Path="ActualWidth" RelativeSource="{RelativeSource Self}" />
</MultiBinding>
</Border.Tag>
<Label x:Name="groupBoxLabel"
FontSize="{StaticResource Fonts_SmallFontSize}"
Foreground="{TemplateBinding Foreground}">
<ContentPresenter
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
ContentSource="Header"
RecognizesAccessKey="True" />
</Label>
</Border>
<ContentPresenter
Margin="{TemplateBinding Padding}"
SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
Grid.Column="1"
Grid.ColumnSpan="2"
Grid.Row="2" />
<Border
Grid.ColumnSpan="4"
Grid.Row="1"
Grid.RowSpan="3"
BorderBrush="Transparent"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="4">
<Border.OpacityMask>
<MultiBinding
Converter="{StaticResource BorderGapMaskConverter}"
ConverterParameter="7">
<Binding ElementName="Header" Path="Tag" />
<Binding
Path="ActualWidth"
RelativeSource="{RelativeSource Self}" />
<Binding
Path="ActualHeight"
RelativeSource="{RelativeSource Self}" />
</MultiBinding>
</Border.OpacityMask>
<Border
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="3" />
</Border>
其使用的整个代码和演示
<UserControl.Resources>
<ResourceDictionary>
<BorderGapMaskConverter x:Key="BorderGapMaskConverter"/>
<Style x:Key="GroupBoxStyle1" TargetType="{x:Type GroupBox}">
<Setter Property="BorderBrush" Value="#D5DFE5"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type GroupBox}">
<Grid SnapsToDevicePixels="true">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="6"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="*"/>
<ColumnDefinition Width="6"/>
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
<RowDefinition Height="6"/>
</Grid.RowDefinitions>
<Border BorderBrush="Transparent" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Grid.ColumnSpan="4" Grid.Column="0" CornerRadius="4" Grid.Row="1" Grid.RowSpan="3"/>
<Border BorderBrush="White" BorderThickness="{TemplateBinding BorderThickness}" Grid.ColumnSpan="4" CornerRadius="4" Grid.Row="1" Grid.RowSpan="3">
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="3">
<Border BorderBrush="White" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2"/>
</Border>
</Border>
<Border x:Name="Header" Grid.Column="1" Padding="3,1,3,0" Grid.Row="0" Grid.RowSpan="2">
<ContentPresenter ContentSource="Header" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Border>
<ContentPresenter Grid.ColumnSpan="2" Grid.Column="1" Margin="{TemplateBinding Padding}" Grid.Row="2" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</ResourceDictionary>
</UserControl.Resources>
<Grid>
<GroupBox Header="" HorizontalAlignment="Left" Margin="70,39,0,0" VerticalAlignment="Top" Height="169.96" Width="299.697" Style="{DynamicResource GroupBoxStyle1}"/>
</Grid>
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