//File:Window.xaml.vb Imports System Imports System.Collections.Generic Imports System.Linq Imports System.Text Imports System.Windows Imports System.Windows.Controls Imports System.Windows.Data Imports System.Windows.Documents Imports System.Windows.Input Imports System.Windows.Media Imports System.Windows.Media.Imaging Imports System.Windows.Navigation Imports System.Windows.Shapes Imports System.Windows.Media.Animation Namespace WpfApplication1 Public Partial Class MainWindow Inherits Window Public Sub New() InitializeComponent() End Sub Protected Sub btnAnimatelblMessage_Click(sender As Object, args As RoutedEventArgs) Dim dblAnim As New DoubleAnimation() dblAnim.From = 40 dblAnim.[To] = 200 dblAnim.AutoReverse = True dblAnim.RepeatBehavior = New RepeatBehavior(TimeSpan.FromSeconds(30)) dblAnim.Duration = New Duration(TimeSpan.FromSeconds(4)) lblHeight.BeginAnimation(Label.HeightProperty, dblAnim) End Sub Protected Sub btnAnimatelblTransparency_Click(sender As Object, args As RoutedEventArgs) Dim dblAnim As New DoubleAnimation() dblAnim.From = 1.0 dblAnim.[To] = 0.0 dblAnim.Duration = New Duration(TimeSpan.FromSeconds(10)) lblTransparency.BeginAnimation(Label.OpacityProperty, dblAnim) End Sub End Class End Namespace