wpf 如何更改 TabControl 中选定选项卡的颜色？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/18470918/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to change the color of the selected tab in the TabControl?
提问by aromore
I am implementing a TabControlfor a dialog box in WPF. The color of the selected tab (mouse-down) is white by default. I want to change the color of that selected tab to the color of hover (when I hover over a tab, the color of the tab changes to an Office-blue-gradient, which is what I want the color of the selected tab to be on mouse-click).
我正在TabControlWPF 中实现一个对话框。所选选项卡（鼠标按下）的颜色默认为白色。我想将所选选项卡的颜色更改为悬停的颜色（当我将鼠标悬停在选项卡上时，选项卡的颜色更改为 Office-blue-gradient，这就是我希望所选选项卡的颜色单击鼠标）。
How can I do that?
我怎样才能做到这一点？
This piece of code does not work:
这段代码不起作用：
<Style x:Key="StyleTabControl" TargetType="{x:Type TabItem}">
<Setter Property="Background" Value="#FFFDFDFD"/>
<Style.Triggers>
<Trigger Property="IsSelected " Value="True">
<Setter Property="Background" Value="SlateGray"></Setter>
</Trigger>
</Style.Triggers>
</Style>
Note: I also tried IsMouseCaptured event for the trigger property. Still does not work.
注意：我还尝试了触发器属性的 IsMouseCaptured 事件。仍然不起作用。
回答by aromore
Alright...after hours of trying, I have realized that the TabItem selection behaviour is defined at the Template level. So, if I wana change the backgrnd color, I do this:
好吧...经过数小时的尝试，我意识到 TabItem 选择行为是在模板级别定义的。所以，如果我想改变背景颜色，我会这样做：
<Window.Resources>
<Style TargetType="{x:Type TabItem}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type TabItem}">
<Border>
<Grid>
<Grid>
<Border x:Name="border"
CornerRadius="3,3,0,0"
Background="WhiteSmoke"/>
</Grid>
<ContentPresenter ContentSource="Header"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />
</Grid>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver"
Value="True">
<Setter TargetName="border"
Property="Background"
Value="LightGray" />
</Trigger>
<Trigger Property="IsSelected"
Value="True">
<Setter TargetName="border"
Property="Background"
Value="LightGray" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
