wpf - 如何在 WPF 中闪烁标签文本

Question

我在 WPF 中创建一个表单，当用户输入错误的值时，标签文本应该从红色闪烁到黑色再到红色等。你将如何在标签中创建这种类型的效果。

Answer 1

For i as Integer = 0 to 3
    YourLabel.Visibility = Visibility.Hidden
    'use Thread.Sleep() or Timer etc. to pause it for some time
    YourLabel.Visibility = Visibility.Visible
    'use Thread.Sleep() or Timer etc. to pause it for some time
Next

或者，您可以使用情节提要动画来实现相同的效果：

<Storyboard x:Key="BlinkAnimation">
    <DoubleAnimation Storyboard.TargetName="YourLabel"
                 Storyboard.TargetProperty="Opacity"
                 From="0" To="1" RepeatBehavior="5x"
                 AutoReverse="True" Duration="0:0:0.5"/>
</Storyboard>