标签:-name name mat tps nim ring 可见 pat attr
原文:[WPF 学习] 13.DataTrigger之EnterAction和ExitAction
原来的需求是控件可见时有动画,不可见的时候没有动画,只写了EnterAction,没写ExitAction,以为空间都隐藏了,总不会再有动画了。刚好该动画在一个摄像头获取的视频上面,动画期间视频有点卡,动画隐藏了,视频还是卡,于是弄了一下测试,发现不写ExitAction动画还是在动的。
<StackPanel>
<TextBox Name="tb" Text="1">
</TextBox>
<Button Focusable="False" Content="Button">
<Button.RenderTransform>
<ScaleTransform ScaleX="0.5"></ScaleTransform>
</Button.RenderTransform>
<Button.Style>
<Style TargetType="Button">
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=tb,Path=Text}" Value="1">
<DataTrigger.EnterActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="(Button.RenderTransform).(ScaleTransform.ScaleX)" From="0.5" To="1" RepeatBehavior="Forever"></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
<DataTrigger.ExitActions>
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetProperty="(Button.RenderTransform).(ScaleTransform.ScaleX)" To="0.6" ></DoubleAnimation>
</Storyboard>
</BeginStoryboard>
</DataTrigger.ExitActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
</StackPanel>
[WPF 学习] 13.DataTrigger之EnterAction和ExitAction
标签:-name name mat tps nim ring 可见 pat attr
原文地址:https://www.cnblogs.com/lonelyxmas/p/12664922.html