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Wpf 去掉tab控件该选项卡下的行_Wpf_Tabcontrol_Border - Fatal编程技术网
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Wpf 去掉tab控件该选项卡下的行

wpf

Wpf 去掉tab控件该选项卡下的行,wpf,tabcontrol,border,Wpf,Tabcontrol,Border,使用xaml（wpf），我试图去掉选项卡控件下的行，如下面的“插图A”所示，这样它看起来就像“插图B”： <Style TargetType="TabItem"> <Setter Property="VerticalContentAlignment" Value="Stretch"/> <Setter Property="HorizontalContentAlignment" Value="Stretch"/> <Setter P

使用xaml（wpf），我试图去掉选项卡控件下的行，如下面的“插图A”所示，这样它看起来就像“插图B”：

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
插图A

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
图B

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
当我定义选项卡项时，该行显示出来，但似乎附加到选项卡控件，因此更改选项卡项或选项卡控件中的一个或两个的边框厚度似乎不会产生所需的结果

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
我需要在一个透明的背景上这样做，在这个背景下，实心填充矩形不能用来掩盖问题

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
代码如下：

<!--Tab Control-->
<Style  TargetType="{x:Type TabControl}">
    <Setter Property="OverridesDefaultStyle" Value="True" />
    <Setter Property="SnapsToDevicePixels" Value="True" />
     <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabControl}">
                <Grid KeyboardNavigation.TabNavigation="Local">
                    <Grid.RowDefinitions>
                        <RowDefinition Height="Auto"/>
                        <RowDefinition Height="*"/>
                    </Grid.RowDefinitions>
                    <TabPanel Name="HeaderPanel" Grid.Row="0" Panel.ZIndex="1" Margin="0,0,0,-1" IsItemsHost="True" KeyboardNavigation.TabIndex="1" Background="Transparent" />
                    <Border 
                        Name="Border" 
                        Grid.Row="1" 
                        Background="{StaticResource WindowBackgroundBrush}" 
                        BorderBrush="{StaticResource DefaultSystemBrush}" 
                        BorderThickness="1,1,1,1" 
                        Margin="0,0,0,0"
                        CornerRadius="4" 
                        KeyboardNavigation.TabNavigation="Local"
                        KeyboardNavigation.DirectionalNavigation="Contained"
                        KeyboardNavigation.TabIndex="2" >
                        <ContentPresenter 
                             Name="PART_SelectedContentHost"
                             Margin="4"
                             ContentSource="SelectedContent" />
                    </Border>                                         
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsEnabled" Value="False">
                        <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}" />
                        <Setter TargetName="Border" Property="BorderBrush" Value="{StaticResource DisabledBorderBrush}" />
                    </Trigger>
        <Trigger Property="IsEnabled" Value="False">
          <Setter Property="Foreground" Value="{StaticResource DisabledForegroundBrush}" />
          <Setter Property="BorderBrush" TargetName="Border" Value="{StaticResource DisabledBorderBrush}" />
        </Trigger>
      </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<Style TargetType="{x:Type TabItem}">
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Grid>
                    <Border Name="Border" Background="Transparent" BorderBrush="{StaticResource DefaultSystemBrush}" BorderThickness="1,1,1,1" CornerRadius="6,6,0,0">
                        <ContentPresenter x:Name="ContentSite" VerticalAlignment="Center" HorizontalAlignment="Center" ContentSource="Header" Margin="12,2,12,2"/>
                    </Border>
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsSelected" Value="True">
                        <Setter Property="Panel.ZIndex" Value="100" />
                        <Setter TargetName="Border" Property="Background" Value="Transparent" />
                        <Setter TargetName="Border" Property="BorderThickness" Value="1,1,1,0" />
                    </Trigger>
                    <Trigger Property="IsSelected" Value="False">
                        <Setter TargetName="Border" Property="Background" Value="LightGray" />
                        <Setter TargetName="Border" Property="BorderThickness" Value="1,1,1,0" />
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
提前感谢,

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
Rob

使用我找到的部分样式，它在选项卡项上。如果覆盖默认控件模板，您可能会对设置该模板感兴趣

<MultiTrigger>
  <MultiTrigger.Conditions>
    <Condition Property="Selector.IsSelected">
      <Condition.Value>
        <s:Boolean>True</s:Boolean>
      </Condition.Value>
    </Condition>
    <Condition Property="TabItem.TabStripPlacement" Value="{x:Static Dock.Top}" />
  </MultiTrigger.Conditions>
  <Setter Property="FrameworkElement.Margin">
    <Setter.Value>
      <Thickness>-2,-2,-2,-1</Thickness>
    </Setter.Value>
  </Setter>
</MultiTrigger>

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


真的
-2,-2,-2,-1
这很好用

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>


<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>
只需更改所选选项卡项的边距和填充。

调整边距和填充对我来说不太合适。但是，在选项卡控件边框上绘制白色（背景色）边框确实起到了作用：

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<ControlTemplate TargetType="{x:Type TabItem}">
<StackPanel VerticalAlignment="Center" HorizontalAlignment="Center" Margin="0 0 7 0">
        <Border x:Name="tabContentBorder" BorderThickness="2 2 2 0" Background="AliceBlue" BorderBrush="AliceBlue" CornerRadius="6 6 0 0">
        <ContentPresenter HorizontalAlignment="Center" x:Name="Content" VerticalAlignment="Center" ContentSource="Header" Margin="7 3 7 3"/>
    </Border>
    <Border  x:Name="tabBottomBorder"  BorderBrush="White" BorderThickness="1" Visibility="Hidden" Margin="2 0 2 -2" HorizontalAlignment="Stretch"></Border>
</StackPanel>
<ControlTemplate.Triggers>
    <Trigger Property="IsSelected" Value="True">
        <Setter TargetName="tabContentBorder" Property="Background" Value="White" />
        <Setter TargetName="tabBottomBorder" Property="Visibility" Value="Visible"/>
    </Trigger>
</ControlTemplate.Triggers>
也有同样的问题。请注意，此线仅为设置了高度的选项卡绘制（仅为一个选项卡设置此线，并且所有选项卡都自动具有“保存高度”）。因此，我添加了一个新的
TabItem
，指定了
width=0
和
height
，并从所有其他选项卡中删除了
height
，这为我带来了窍门。



<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>



   <Style TargetType="TabControl">
        <Setter Property="Template">
            <Setter.Value>

                <ControlTemplate TargetType="{x:Type TabControl}">
                    <Grid KeyboardNavigation.TabNavigation="Local">
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="*" />
                        </Grid.RowDefinitions>

                        <TabPanel x:Name="HeaderPanel"
                              Grid.Row="0"
                              Panel.ZIndex="1"
                              Margin="0,0,0,-1"
                              IsItemsHost="True"
                              KeyboardNavigation.TabIndex="1"
                              Background="Transparent" />

                        <Border x:Name="Border"
                            Grid.Row="1"
                            BorderThickness="1"
                            KeyboardNavigation.TabNavigation="Local"
                            KeyboardNavigation.DirectionalNavigation="Contained"
                            KeyboardNavigation.TabIndex="2">

                            <Border.Background>
                                <SolidColorBrush Color="White"/>
                            </Border.Background>

                            <Border.BorderBrush>
                                <SolidColorBrush Color="White"/>
                            </Border.BorderBrush>

                            <ContentPresenter x:Name="PART_SelectedContentHost"
                                          Margin="0"
                                          ContentSource="SelectedContent" />
                        </Border>
                    </Grid>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
        </Style>
另一个非常简单的方法是只需添加一个额外的零宽度选项卡，您可以将高度设置为所需的高度，甚至可以将其可见性隐藏。然后，您可以设置选项卡高度，而不必在选项卡上设置高度的恼人的水平线

<Style TargetType="TabItem">
    <Setter Property="VerticalContentAlignment" Value="Stretch"/>
    <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TabItem}">
                <Border x:Name="Chrome"
                        BorderThickness="1,1,1,0" 
                        BorderBrush="Black" 
                        Background="{TemplateBinding Background}" 
                        Padding="2,2,2,1" Margin="1,1,1,0">
                    <ContentPresenter ContentSource="Header" 
                        HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" 
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Border>
                <ControlTemplate.Triggers>
                    <Trigger Property="Selector.IsSelected" Value="True">
                        <Setter TargetName="Chrome" Property="Margin" Value="1,1,1,-1"/>
                        <Setter TargetName="Chrome" Property="Padding" Value="2"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

            <TabItem Header="" Width="0" Height="30" Visibility="Hidden" />
我可能遗漏了一些内容，但是带有tabitem的默认tabcontrol在您的插图中不会有该行。你是说那些没有被选中的标签吗？看那边的照片，没有显示线条。我也看到了。如果仔细观察，前几幅插图在所选选项卡下方没有线条，但最后几幅插图（在定义tabitem之后）在其下方有线条。目前，作为一项解决方案，我将关闭tab控件的上边框，在选项卡的右边缘和tabcontrol容器的右边缘之间添加一个1像素宽的矩形。一定有更好的方法。嗯，我似乎无法实现这一点-我将其放入了tabcontrol代码中，但它似乎没有起到多大作用。TabItem的模板中还有很多。使用我列出的程序，看看你要做什么才能让它消失。这件特别的作品为一个简单的设置工作。