我查看了 stackoverflow 和互联网，但没有找到特定问题的答案。我想创建一个TabControl/TabItem像左导航一样的组合。我还是 XAML 的新手（现在只使用了几个月），我无法找到实现这一目标的最佳方法。我还想在当前选定的选项卡标题中添加一个小箭头图标。最后，我希望它看起来与 dnrtv 第 115 集中展示的设计相似，其中展示了比利霍利斯的出色设计，他提到这是一个TabControl看起来像它的样式。查看此链接并转到 4:43 了解我的意思：dnrtv Billy Hollis
到目前为止，我已经能够远离在网上搜索几乎一整天：
<TabControl TabStripPlacement="Left">
<TabControl.Resources>
<Style TargetType="{x:Type TabItem}">
<Setter Property="Background" Value="Transparent" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<Border x:Name="PART_Border" Background="{TemplateBinding Background}" BorderThickness="1" BorderBrush="LightGray" Margin="2">
<ContentPresenter ContentSource="Header" Margin="2" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter TargetName="PART_Border" Property="BorderBrush" Value="Black" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style TargetType="{x:Type TabControl}">
<Setter Property="TabStripPlacement" Value="Left" />
<Setter Property="Margin" Value="2" />
<Setter Property="Padding" Value="2" />
<Setter Property="Background" Value="White" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabControl}">
<Grid ClipToBounds="True" SnapsToDevicePixels="True" KeyboardNavigation.TabNavigation="Local">
<Grid.ColumnDefinitions>
<ColumnDefinition Name="ColumnDefinition0" />
<ColumnDefinition Width="0" Name="ColumnDefinition1" />
</Grid.ColumnDefinitions>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" Name="RowDefinition0" />
<RowDefinition Height="*" Name="RowDefinition1" />
</Grid.RowDefinitions>
<Border x:Name="HeaderBorder"
BorderBrush="Black"
BorderThickness="1"
CornerRadius="5"
Background="#FAFAFA"
Margin="0,0,0,5">
<TabPanel IsItemsHost="True"
Name="HeaderPanel"
Panel.ZIndex="1"
KeyboardNavigation.TabIndex="1"
Grid.Column="0"
Grid.Row="0"
/>
</Border>
<Grid Name="ContentPanel"
KeyboardNavigation.TabIndex="2"
KeyboardNavigation.TabNavigation="Local"
KeyboardNavigation.DirectionalNavigation="Contained"
Grid.Column="0"
Grid.Row="1">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="5">
<ContentPresenter Content="{TemplateBinding SelectedContent}"
ContentTemplate="{TemplateBinding SelectedContentTemplate}"
ContentStringFormat="{TemplateBinding SelectedContentStringFormat}"
ContentSource="SelectedContent"
Name="PART_SelectedContentHost"
Margin="2"
SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}"
/>
</Border>
</Grid>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="TabControl.TabStripPlacement" Value="Bottom">
<Setter TargetName="HeaderPanel" Property="Grid.Row" Value="1" />
<Setter TargetName="ContentPanel" Property="Grid.Row" Value="0" />
<Setter TargetName="RowDefinition0" Property="RowDefinition.Height" Value="*" />
<Setter TargetName="RowDefinition1" Property="RowDefinition.Height" Value="Auto" />
<Setter TargetName="HeaderBorder" Property="FrameworkElement.Margin" Value="0,5,0,0" />
</Trigger>
<Trigger Property="TabControl.TabStripPlacement" Value="Left">
<Setter TargetName="HeaderPanel" Property="Grid.Row" Value="0" />
<Setter TargetName="ContentPanel" Property="Grid.Row" Value="0" />
<Setter TargetName="HeaderPanel" Property="Grid.Column" Value="0" />
<Setter TargetName="ContentPanel" Property="Grid.Column" Value="1" />
<Setter TargetName="ColumnDefinition0" Property="ColumnDefinition.Width" Value="Auto" />
<Setter TargetName="ColumnDefinition1" Property="ColumnDefinition.Width" Value="*" />
<Setter TargetName="RowDefinition0" Property="RowDefinition.Height" Value="*" />
<Setter TargetName="RowDefinition1" Property="RowDefinition.Height" Value="0" />
<Setter TargetName="HeaderBorder" Property="FrameworkElement.Margin" Value="0,0,5,0" />
</Trigger>
<Trigger Property="TabControl.TabStripPlacement" Value="Right">
<Setter TargetName="HeaderPanel" Property="Grid.Row" Value="0" />
<Setter TargetName="ContentPanel" Property="Grid.Row" Value="0" />
<Setter TargetName="HeaderPanel" Property="Grid.Column" Value="1" />
<Setter TargetName="ContentPanel" Property="Grid.Column" Value="0" />
<Setter TargetName="ColumnDefinition0" Property="ColumnDefinition.Width" Value="*" />
<Setter TargetName="ColumnDefinition1" Property="ColumnDefinition.Width" Value="Auto" />
<Setter TargetName="RowDefinition0" Property="RowDefinition.Height" Value="*" />
<Setter TargetName="RowDefinition1" Property="RowDefinition.Height" Value="0" />
<Setter TargetName="HeaderBorder" Property="FrameworkElement.Margin" Value="5,0,0,0" />
</Trigger>
<Trigger Property="UIElement.IsEnabled" Value="False">
<Setter Property="TextElement.Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TabControl.Resources>
<TabItem Header="Tab1Header"/>
<TabItem Header="Tab2Header" />
<TabItem Header="Tab3Header" />
</TabControl>
TabItem这段代码让我得到了左边的标题和一些外观，但我需要弄清楚当 a的IsSelected属性为真时如何添加图标。另外，如果可能的话，我想消除边界。请让我知道我是否在吠叫错误的树并且需要以不同的方式设置它。
我应该使用 aDataTemplateSelector或类似的东西吗？我想在所有 xaml 中都这样做，但如果那是不可能的，那也没关系。
任何帮助将不胜感激！