<ListBox.ItemTemplate>
<DataTemplate>
<Grid x:Name="grid">
<Grid.Background>
<SolidColorBrush x:Name="backgroundBrush" Color="Transparent" Opacity="0.1"/>
</Grid.Background>
</Grid>
<DataTemplate.Triggers>
<DataTrigger Binding="{Binding IsExpanded}" Value="True">
<Setter TargetName="backgroundBrush" Property="Color" Value="Green" />
</DataTrigger>
<Trigger SourceName="grid" Property="IsMouseOver" Value="True">
<Trigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetName="backgroundBrush"
Storyboard.TargetProperty="Color"
To="White" Duration="0:0:1.5"/>
</Storyboard>
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetName="backgroundBrush"
Storyboard.TargetProperty="Color"
AccelerationRatio="1" Duration="0:0:1.5" />
</Storyboard>
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</DataTemplate.Triggers>
</DataTemplate>
</ListBox.ItemTemplate>
编译时报错:“无法找到触发器目标'backgroundBrush'。”
如果我删除DataTrigger,它将编译并正常工作。如果我将DataTrigger更改为使用TargetName =“grid” Property =“Background”
,则它将编译并正常工作(但不具有所需的不透明度)。
我做错了什么?