我创建了一个类似下面的UserControl:
<UserControl>
<StackPanel Orientation="Vertical">
<StackPanel x:Name="Launch" Orientation="Horizontal" Visibility="Collapsed">
<!-- Children here -->
</StackPanel>
<ToggleButton x:Name="ToggleLaunch" IsChecked="False" Content="Launch"/>
</StackPanel>
</UserControl>
我一直在尝试使用DataTrigger,使'ToggleButton'被选中时让'Launch' StackPanel可见,否则保持折叠状态。然而,在运行时,我收到一个错误,指出“Failed object initialization (ISupportInitialize.EndInit)。Triggers collection members must be of type EventTrigger”。我已经尝试将其添加到UserControl和StackPanel的触发器集合中,但没有成功。我的触发器XAML如下:
<DataTrigger Binding="{Binding ElementName=ToggleLaunch, Path=IsChecked}" Value="True">
<Setter TargetName="Launch" Property="UIElement.Visibility" Value="Visible"/>
</DataTrigger>