在父元素触发器中的子元素上设置 属性
Set a property on child element in trigger on parent element
我有一个网格,它由两行组成,第二行有一个矩形。每当鼠标悬停在网格上时,我想将其颜色更改为红色。
我尝试使用 EventTrigger,但是当鼠标悬停在网格上时没有任何反应
<Grid Width="50" Height="50" Background="Green">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.Style>
<Style TargetType="{x:Type Grid}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Rectangle.Fill" Value="Red" />
</Trigger>
</Style.Triggers>
</Style>
</Grid.Style>
<Rectangle Grid.Row="1" Fill="LightGray" />
</Grid>
Rectangle.Fill
不是 Grid
的 属性。将 Style
移动到要更改的元素:
<Grid Width="50" Height="50" Background="Green">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Rectangle Grid.Row="1">
<Rectangle.Style>
<Style TargetType="Rectangle">
<Setter Property="Fill" Value="LightGray" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsMouseOver, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True">
<Setter Property="Fill" Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>
</Grid>
我有一个网格,它由两行组成,第二行有一个矩形。每当鼠标悬停在网格上时,我想将其颜色更改为红色。
我尝试使用 EventTrigger,但是当鼠标悬停在网格上时没有任何反应
<Grid Width="50" Height="50" Background="Green">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Grid.Style>
<Style TargetType="{x:Type Grid}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Rectangle.Fill" Value="Red" />
</Trigger>
</Style.Triggers>
</Style>
</Grid.Style>
<Rectangle Grid.Row="1" Fill="LightGray" />
</Grid>
Rectangle.Fill
不是 Grid
的 属性。将 Style
移动到要更改的元素:
<Grid Width="50" Height="50" Background="Green">
<Grid.RowDefinitions>
<RowDefinition Height="*" />
<RowDefinition Height="*" />
</Grid.RowDefinitions>
<Rectangle Grid.Row="1">
<Rectangle.Style>
<Style TargetType="Rectangle">
<Setter Property="Fill" Value="LightGray" />
<Style.Triggers>
<DataTrigger Binding="{Binding IsMouseOver, RelativeSource={RelativeSource AncestorType=Grid}}"
Value="True">
<Setter Property="Fill" Value="Red" />
</DataTrigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>
</Grid>