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<Canvas  ClipToBounds="True" Name="canMain" VerticalAlignment="Stretch" HorizontalAlignment="Stretch" >

   <StackPanel  Name="tbmarquee" HorizontalAlignment="Stretch"  ></StackPanel>

</Canvas>

 

private void BottomToTopMarquee()

{

     tbmarquee.Orientation = Orientation.Vertical;  

     DoubleAnimation doubleAnimation = new DoubleAnimation();

     doubleAnimation.From = -tbmarquee.ActualHeight;

     doubleAnimation.To = canMain.ActualHeight;

     doubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

     doubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(_marqueeTimeInSeconds));

     tbmarquee.BeginAnimation(Canvas.BottomProperty, doubleAnimation);

 }

       

Thread thread = new Thread(new ThreadStart(

            delegate()

            {

                DispatcherOperation dispatcherOp =

                  this.Dispatcher.BeginInvoke(DispatcherPriority.Normal, new Action(

                    delegate()

                    {

 

                        DoubleAnimation doubleAnimation = new DoubleAnimation();

                        doubleAnimation.From = -tbmarquee.ActualHeight;

                        doubleAnimation.To = canMain.ActualHeight;

                        doubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

                        doubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(_marqueeTimeInSeconds));

                        tbmarquee.BeginAnimation(Canvas.BottomProperty, doubleAnimation);

                    }));

                dispatcherOp.Completed += new EventHandler(DispatcherOpCompleted);

            }));

            thread.Start();

       

MediaTimeline.DesiredFrameRateProperty.OverrideMetadata(typeof(System.Windows.Media.Animation.Timeline), new FrameworkPropertyMetadata(10));