WPF 边框 IsMouseOver 触发器不起作用
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WPF Border IsMouseOver trigger not working
提问by Jaska
I have defined this kind of style in app.xaml:
我在 app.xaml 中定义了这种样式：
<Style x:Key="RedCloseButton" TargetType="Border">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Border.Background" Value="Yellow" />
</Trigger>
<Trigger Property="IsMouseOver" Value="False">
<Setter Property="Border.Background" Value="Black" />
</Trigger>
</Style.Triggers>
</Style>
And I'm trying to use it in another xaml -file like this:
我正在尝试在另一个 xaml 文件中使用它，如下所示：
<Border Style="{StaticResource RedCloseButton}" Name="ClearValue" BorderThickness="2" BorderBrush="black" CornerRadius="0,4,4,0" Margin="110,90,0,80" Background="#FF801F1F">
<Rectangle Margin="10,11,6,10" Fill="White" RadiusX="2" RadiusY="2" IsHitTestVisible="False"></Rectangle>
</Border>
But nothing happens when I mouse over the border.. what could be wrong here?
但是当我将鼠标悬停在边界上时什么也没有发生……这里有什么问题？
回答by sa_ddam213
Its because you have set the Backgroundin the Border, this will override the Style
因为您在 中设置Background了Border，这将覆盖Style
You will have to remove Background="#FF801F1F"from the Borderxamlso the Stylecan set the Background
您必须从 中删除Background="#FF801F1F"，Borderxaml以便Style可以设置Background
<Border Style="{StaticResource RedCloseButton}" Name="ClearValue" BorderThickness="2" BorderBrush="black" CornerRadius="0,4,4,0" Margin="110,90,0,80">
<Rectangle Margin="10,11,6,10" Fill="White" RadiusX="2" RadiusY="2" IsHitTestVisible="False"></Rectangle>
</Border>
