我有一个带有 ToggleButton 的网格。ToggleButton 有一个 ControlTemplate,在这个 ControlTemplate 中我定义了一个椭圆和一个路径。如果 ToggleButtons IsMouseOver 属性为 true,则椭圆和路径上的颜色会发生变化。现在,如果 Grids IsMouseOver 属性也为 true,我想更改颜色。但我无法让它工作。
我的代码看起来像
<Grid Height="26"
x:Name="GroupboxHeader"
Background="Blue">
<Grid.ColumnDefinitions>
<ColumnDefinition Width="*" />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<ToggleButton Grid.Column="1"
HorizontalAlignment="Right"
Margin="0 0 5 0"
OverridesDefaultStyle="True"
Background="LightGray"
Height="19"
Width="19">
<ToggleButton.Template>
<ControlTemplate>
<Grid>
<Grid.LayoutTransform>
<TransformGroup>
<TransformGroup.Children>
<TransformCollection>
<RotateTransform Angle="90" />
</TransformCollection>
</TransformGroup.Children>
</TransformGroup>
</Grid.LayoutTransform>
<Ellipse x:Name="circle"
HorizontalAlignment="Center"
Height="19"
Stroke="White"
VerticalAlignment="Center"
Width="19" />
<Path x:Name="arrow"
Data="M 1,1.5 L 4.5,5 L 8,1.5"
HorizontalAlignment="Center"
SnapsToDevicePixels="false"
Stroke="White"
StrokeThickness="2"
VerticalAlignment="Center" />
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver"
Value="true">
<Setter Property="Stroke"
TargetName="circle"
Value="LightGray" />
<Setter Property="Stroke"
TargetName="arrow"
Value="LightGray" />
</Trigger>
<DataTrigger Binding="{Binding ElementName=GroupboxHeader, Path=IsMouseOver}">
<Setter Property="Stroke"
TargetName="circle"
Value="LightGray" />
<Setter Property="Stroke"
TargetName="arrow"
Value="LightGray" />
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</ToggleButton.Template>
</ToggleButton>
</Grid>