此样式根据ViewModel属性的更改正确地淡入或淡出我的工具栏:
<Style x:Key="PageToolBarStyle" TargetType="Border">
<Style.Triggers>
<DataTrigger Binding="{Binding PageToolBarVisible}" Value="true">
<DataTrigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetProperty="Opacity"
From="0.0"
To="1.0"
Duration="0:0:2"/>
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
<DataTrigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation
Storyboard.TargetProperty="Opacity"
From="1.0"
To="0.0"
Duration="0:0:2"/>
</Storyboard>
</BeginStoryboard>
</DataTrigger.ExitActions>
</DataTrigger>
<Trigger Property="Opacity" Value="0">
<Setter Property="Visibility" Value="Collapsed"/>
</Trigger>
</Style.Triggers>
</Style>
但是,当应用程序加载时,工具栏的状态(淡出或淡出)不同步与ViewModel属性的值(true或false) 。所以我想在加载窗口时强制执行此样式,执行此操作的语法是什么,这里是我想要做的伪代码:
<Window.Triggers>
<EventTrigger RoutedEvent="FrameworkElement.Loaded">
<EventTrigger.Actions>
<!-- PSEUDO-CODE: -->
<ExecuteTriggerStyle StyleToExecute="{StaticResource PageToolBarStyle}"/>
</EventTrigger.Actions>
</EventTrigger>
</Window.Triggers>