给定以下样式和名为的故事板animation
,<Window.Resources>
我如何暂停(和恢复)从后面的代码触发的故事板((Storyboard)FindResource("animate")).Begin(Tab1, true);
以下代码错误表明PauseStoryboard
事件找不到动画,这是有道理的,因为它不在模板中。该BeginStoryboard
事件允许您绑定到资源,但暂停和恢复不能。
<Style x:Key="HiddenTabItem" TargetType="{x:Type TabItem}">
<Setter Property="HeaderTemplate">
<Setter.Value>
<DataTemplate DataType="{x:Type TabItem}">
<Border x:Name="grid">
<ContentPresenter>
<ContentPresenter.Content>
<TextBlock Text="{TemplateBinding Content}"/>
</ContentPresenter.Content>
</ContentPresenter>
</Border>
<DataTemplate.Triggers>
<EventTrigger RoutedEvent="MouseEnter">
<PauseStoryboard BeginStoryboardName="animate" />
</EventTrigger>
</DataTemplate.Triggers>
</DataTemplate>
</Setter.Value>
</Setter>
</Style>
动画故事板:
<Window.Resources>
<Storyboard x:Key="animate">
<ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="0:0:0.0" Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:0.2"/>
<DoubleAnimation BeginTime="0:0:2.5" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:0.5"/>
<ObjectAnimationUsingKeyFrames BeginTime="0:0:5.5" Storyboard.TargetProperty="Visibility">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Hidden</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</Window.Resources>