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ProgressBar with infinite iterations

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"     x:Class="ProgBar.Window1"     Title ="ProgressBar"     Width="500">   <StackPanel>     <Button Content="One" Click="MakeOne"/>     <StatusBar Name="sbar" Grid.Column="0" Grid.Row="5" VerticalAlignment="Bottom" Background="Beige" >       <StatusBarItem>         <TextBlock>StatusBar</TextBlock>       </StatusBarItem>     </StatusBar>   </StackPanel> </Window> //File:Window.xaml.cs using System; using System.Windows; using System.Windows.Controls; using System.Windows.Controls.Primitives; using System.Windows.Data; using System.Windows.Documents; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Media.Imaging; using System.Windows.Shapes; namespace ProgBar {     public partial class Window1 : Window     {                  private void MakeOne(object sender, RoutedEventArgs e)         {            sbar.Items.Clear();            Label lbl = new Label();            lbl.Background = new LinearGradientBrush(Colors.LightBlue,                                                             Colors.SlateBlue, 90);            lbl.Content = "ProgressBar with infinite iterations.";            sbar.Items.Add(lbl);            ProgressBar progbar = new ProgressBar();            progbar.Width = 150;            progbar.Height = 15;            Duration duration = new Duration(TimeSpan.FromSeconds(1));            DoubleAnimation doubleanimation = new DoubleAnimation(100.0, duration);            doubleanimation.RepeatBehavior = RepeatBehavior.Forever;            progbar.BeginAnimation(ProgressBar.ValueProperty, doubleanimation);            sbar.Items.Add(progbar);         }       } }