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我對WPF完全陌生，我試圖根據是否選中該選項卡來調整我的tabItem的樣式。我在網上找到了一段代碼，我知道觸發器中的樣式正確應用，具體取決於選項卡是否被選中。WPF - 無法使用觸發器實現TabItem樣式設計
首先，我想會是這樣的風格：
現在，作品風格與此XAML（在這裏沒有觸發器）：
<Window x:Class="DevelopmentConfigurator.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:DevelopmentConfigurator"
mc:Ignorable="d"
Title="Development Configurator" Height="350" Width="525">
<Window.Resources>
<Style x:Key="activeTabStyle" TargetType="TabItem">
<Setter Property="Foreground" Value="#FF0067CD"></Setter>
<Setter Property="FontWeight" Value="Bold"></Setter>
<Setter Property="Height" Value="35"></Setter>
</Style>
<Style x:Key="inactiveTabStyle" TargetType="TabItem">
<Setter Property="Foreground" Value="White"></Setter>
</Style>
</Window.Resources>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50*"/>
<ColumnDefinition Width="467*"/>
</Grid.ColumnDefinitions>
<TabControl x:Name="tabControl" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="517" Grid.ColumnSpan="2">
<TabItem Header="TabItem" Style="{StaticResource activeTabStyle}">
<TabItem.Background>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF3F3F3" Offset="0"/>
<GradientStop Color="#FFEBEBEB" Offset="0.5"/>
<GradientStop Color="#FFDDDDDD" Offset="0.5"/>
<GradientStop Color="White" Offset="1"/>
</LinearGradientBrush>
</TabItem.Background>
<Grid Background="#FFE5E5E5" Margin="0,0,0,21"/>
</TabItem>
<TabItem Header="TabItem" Foreground="White" RenderTransformOrigin="0.5,0.5">
<TabItem.RenderTransform>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="0.527"/>
<TranslateTransform/>
</TransformGroup>
</TabItem.RenderTransform>
<TabItem.Background>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FF00A0E8" Offset="0"/>
<GradientStop Color="#FF0067CD" Offset="1"/>
<GradientStop Color="#FFDDDDDD" Offset="1"/>
<GradientStop Color="#FFCDCDCD" Offset="1"/>
</LinearGradientBrush>
</TabItem.Background>
<Grid Background="#FFE5E5E5"/>
</TabItem>
</TabControl>
</Grid>
</Window>
現在，因爲我需要使用觸發器，我嘗試了下面的代碼，但是我無法獲得無效標籤的背景：
<Window x:Class="DevelopmentConfigurator.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:DevelopmentConfigurator"
mc:Ignorable="d"
Title="Development Configurator" Height="350" Width="525">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="50*"/>
<ColumnDefinition Width="467*"/>
</Grid.ColumnDefinitions>
<TabControl x:Name="tabControl" HorizontalAlignment="Left" Height="320" VerticalAlignment="Top" Width="517" Grid.ColumnSpan="2">
<TabControl.Resources>
<Style TargetType="TabItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="TabItem">
<Grid Name="Panel" Background="White">
<ContentPresenter x:Name="ContentSite"
VerticalAlignment="Center"
HorizontalAlignment="Center"
ContentSource="Header"
Margin="10,2"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsSelected" Value="True">
<Setter Property="Foreground" Value="#FF0067CD"></Setter>
<Setter Property="FontWeight" Value="Bold"></Setter>
<Setter Property="Height" Value="35"></Setter>
<Setter Property="Background">
<Setter.Value>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FFF3F3F3" Offset="0"/>
<GradientStop Color="#FFEBEBEB" Offset="0.5"/>
<GradientStop Color="#FFDDDDDD" Offset="0.5"/>
<GradientStop Color="White" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="IsSelected" Value="False">
<Setter Property="Foreground" Value="White"></Setter>
<Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter>
<Setter Property="RenderTransform">
<Setter.Value>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="0.527"/>
<TranslateTransform/>
</TransformGroup>
</Setter.Value>
</Setter>
<Setter Property="Background">
<Setter.Value>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FF00A0E8" Offset="0"/>
<GradientStop Color="#FF0067CD" Offset="1"/>
<GradientStop Color="#FFDDDDDD" Offset="1"/>
<GradientStop Color="#FFCDCDCD" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</TabControl.Resources>
<TabItem Header="Packages">
<Label Content="Content goes here..." />
</TabItem>
<TabItem Header="Updates" />
<TabItem Header="EnvironmentVariables" />
</TabControl>
</Grid>
</Window>
我得到的結果如下：
正如你所看到的，白色的成功應用，但背景是不是。我猜它可能是與此相關的代碼語法問題：
<Trigger Property="IsSelected" Value="False">
<Setter Property="Foreground" Value="White"></Setter>
<Setter Property="RenderTransformOrigin" Value="0.5,0.5"></Setter>
<Setter Property="RenderTransform">
<Setter.Value>
<TransformGroup>
<ScaleTransform/>
<SkewTransform/>
<RotateTransform Angle="0.527"/>
<TranslateTransform/>
</TransformGroup>
</Setter.Value>
</Setter>
<Setter Property="Background">
<Setter.Value>
<LinearGradientBrush EndPoint="0,1" StartPoint="0,0">
<GradientStop Color="#FF00A0E8" Offset="0"/>
<GradientStop Color="#FF0067CD" Offset="1"/>
<GradientStop Color="#FFDDDDDD" Offset="1"/>
<GradientStop Color="#FFCDCDCD" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
</Trigger>
我應該怎麼才能更改背景是什麼？