如何TabItem在選擇或激活標題文本時僅更改其前景色而不更改其中任何專案TabItem或任何內容的前景？我對這一切都很陌生，所以很難弄清楚我可以在我的TabItem樣式中的哪里實作這個小功能以及如何實作。
TabControl我使用的風格是：
<Style
x:Key="{x:Type TabControl}"
TargetType="{x:Type TabControl}">
<Setter
Property="BorderThickness"
Value="0" />
<Setter
Property="BorderBrush"
Value="Transparent" />
<Setter
Property="Background"
Value="Transparent" />
<Setter
Property="Template">
<Setter.Value>
<ControlTemplate
TargetType="TabControl">
<Grid>
<Grid.RowDefinitions>
<RowDefinition
Height="Auto" />
<RowDefinition
Height="*" />
</Grid.RowDefinitions>
<Border
BorderThickness="0,0,1,1"
BorderBrush="#D0CEBF"
Grid.Row="1">
<Border
BorderThickness="{TemplateBinding BorderThickness}"
BorderBrush="{TemplateBinding BorderBrush}">
<Border
Background="{TemplateBinding Background}">
<ContentPresenter
ContentSource="SelectedContent" />
</Border>
</Border>
</Border>
<TabPanel
Grid.Row="0"
IsItemsHost="true"
HorizontalAlignment="Center" />
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style
TargetType="TabItem">
<Setter
Property="BorderThickness"
Value="0" />
<Setter
Property="BorderBrush"
Value="Transparent" />
<Setter
Property="Background"
Value="Transparent" />
<Setter
Property="VerticalContentAlignment"
Value="Center" />
<Setter
Property="HorizontalContentAlignment"
Value="Center" />
<Setter
Property="Template">
<Setter.Value>
<ControlTemplate
TargetType="{x:Type TabItem}">
<!--In order to click on the blank part of the TabItem can be successfully selected-->
<Border
Background="Transparent">
<Grid>
<Grid
x:Name="g">
<Path
Fill="{TemplateBinding Background}"
Margin="0,0,0,-1"
Data="M 20,40 L 0,40 0,40 C 4,40 10,36 10,30 L 10,10 C 10,0 16,0 20,0 L 155,0 C 165,0 173,0 ,175,6 L175,30 C 175,30 175,38 182,40 Z" />
</Grid>
<Border
BorderThickness="{TemplateBinding BorderThickness}"
Padding="{TemplateBinding Padding}">
<ContentPresenter
ContentSource="Header"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
</Border>
</Grid>
</Border>
<!--Add ControlTemplate.Triggers to change the background color of the selected TabItem.-->
<ControlTemplate.Triggers>
<Trigger
Property="IsSelected"
Value="false">
<Setter
Property="Visibility"
TargetName="g"
Value="Hidden" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
uj5u.com熱心網友回復：
不幸的是，在您的控制元件模板中添加觸發器也會在選擇選項卡時TabItem設定內容的前景色TabItem，因此這不起作用。
<Trigger Property="IsSelected" Value="True">
<Setter Property="Foreground" Value="Red" />
</Trigger>
但是，您可以在資源中添加隱式TextBlock樣式（不帶x:Key）ContentPresenter。它將僅自動應用于TextBlock其范圍內的 s，不會影響TabItem內容，甚至不會影響除 s 之外的自定義標題模板中的其他元素TextBlock。
<ContentPresenter
ContentSource="Header"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" >
<ContentPresenter.Resources>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger
Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type TabItem}}}"
Value="true">
<Setter
Property="Foreground"
Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</ContentPresenter.Resources>
</ContentPresenter>
或者，一個專門的解決方案是創建一個標題模板并將觸發器放在那里。在這種情況下，它不會強制覆寫的標題模板將前景應用于每個TextBlock.
<Setter
Property="HeaderTemplate">
<Setter.Value>
<DataTemplate>
<TextBlock Text="{Binding}">
<TextBlock.Style>
<Style TargetType="{x:Type TextBlock}">
<Style.Triggers>
<DataTrigger
Binding="{Binding IsSelected, RelativeSource={RelativeSource AncestorType={x:Type TabItem}}}"
Value="true">
<Setter
Property="Foreground"
Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</TextBlock.Style>
</TextBlock>
</DataTemplate>
</Setter.Value>
</Setter>
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