WPF-Can'；t将Groupbox标题向右对齐

我是WPF的新手

我无法将分组框标题文本“abc”向右对齐，它停留在左侧，不知道为什么，有人能帮我吗

<Window x:Class="UserInterface.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="500" Width="625">
    <Grid ShowGridLines="True">
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>             
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>
        <Grid Grid.Column="0" ShowGridLines="True">
            <Grid.RowDefinitions>
                <RowDefinition Height="4*"/>
                <RowDefinition Height="*"/>
            </Grid.RowDefinitions>
            <StackPanel Grid.Row="1">
                <GroupBox>
                    <GroupBox.Header>
                        <DockPanel>
                            <TextBlock HorizontalAlignment="Right">abc</TextBlock>
                        </DockPanel>
                    </GroupBox.Header>
                </GroupBox>
            </StackPanel>
        </Grid>
    </Grid>
</Window>

abc

如果要将标题与

右侧对齐，则必须覆盖
分组框的
模板
。默认情况下，它位于默认模板的左侧

关键是

在承载标题ContentPresenter的边框上，将
Grid.ColumnSpan
设置为
2
在ContentPresenter上将
HorizontalAlignment
设置为
Right
以下是可以工作的XAML：

<GroupBox Header="abc">
   <GroupBox.Template>
      <ControlTemplate TargetType="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 BorderThickness="{TemplateBinding Border.BorderThickness}"
                    CornerRadius="4,4,4,4"
                    BorderBrush="#00FFFFFF"
                    Background="{TemplateBinding Panel.Background}"
                    Grid.Column="0"
                    Grid.Row="1"
                    Grid.ColumnSpan="4"
                    Grid.RowSpan="3" />
            <Border BorderThickness="{TemplateBinding Border.BorderThickness}"
                    CornerRadius="4,4,4,4"
                    BorderBrush="#FFFFFFFF"
                    OpacityMask="{x:Null}"
                    Grid.Row="1"
                    Grid.ColumnSpan="4"
                    Grid.RowSpan="3">
               <Border BorderThickness="{TemplateBinding Border.BorderThickness}"
                       CornerRadius="3,3,3,3"
                       BorderBrush="{TemplateBinding Border.BorderBrush}">
                 <Border BorderThickness="{TemplateBinding Border.BorderThickness}"
                         CornerRadius="2,2,2,2"
                         BorderBrush="#FFFFFFFF" />
               </Border>
             </Border>
            <Border Padding="3,1,3,0"
                    Name="Header"
                    Grid.Column="1"
                    Grid.ColumnSpan="2" <-- HERE
                    Grid.Row="0"
                    Grid.RowSpan="2">
               <ContentPresenter RecognizesAccessKey="True"
                                 HorizontalAlignment="Right" <-- And HERE
                                 Content="{TemplateBinding HeaderedContentControl.Header}"
                                 ContentTemplate="{TemplateBinding HeaderedContentControl.HeaderTemplate}"
                                 ContentStringFormat="{TemplateBinding HeaderedContentControl.HeaderStringFormat}"
                                 ContentSource="Header"
                                 SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" />
             </Border>
             <ContentPresenter Content="{TemplateBinding ContentControl.Content}"
                               ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}"
                               ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}"
                               Margin="{TemplateBinding Control.Padding}"
                               SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}"
                               Grid.Column="1"
                               Grid.Row="2"
                               Grid.ColumnSpan="2" />
          </Grid>
       </ControlTemplate>
   </GroupBox.Template>
</GroupBox>


您需要在控件的模板内重新设计ContentPresenter

有一个例子，但不知何故它也重新设计了GroupBox

看看这个，看看这是不是你想要的。你在找这条线吗

<ContentPresenter Margin="4"
                  ContentSource="Header"
                  RecognizesAccessKey="True" />

您必须编辑
GroupBox
的
ControlTemplate
，因为页眉是硬编码的，使用
网格和列排列左对齐。
HorizontalAlignment="Right"