WPF

internal static void TraverseVisualTree(object current)
{
  DependencyObject ob = current as DependencyObject;
 
  int counter = VisualTreeHelper.GetChildrenCount(ob);
  for (int i = 0; i < counter; i++)
  {
   object depObj = VisualTreeHelper.GetChild(ob, i);
   // Do something here...
   TraverseVisualTree(depObj);
  }
 }
}

TraverseVisualTree(this);

Feras Mazen Taleb wrote:

how can I make the same animation for all buttons but not in the same time

ABitSmart wrote:

Take a look at this list of crazy WPF layout panels.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Media.Animation;

namespace practiceOnAnimationClasses
{
    /// <summary>
    /// Interaction logic for Window1.xaml
    /// </summary>
    public partial class Window1 : Window
    {
        public Window1()
        {
            InitializeComponent();
        }

        DoubleAnimationUsingPath Animation1 = new DoubleAnimationUsingPath();

        private void Window_Loaded(object sender, RoutedEventArgs e)
        {
            List<Button> buttons = new List<Button>(5);
            buttons.Add(new Button() { Width = 120d, Height = 75d, Content = "Advertisement 1" });
            buttons.Add(new Button() { Width = 120d, Height = 75d, Content = "Advertisement 2" });
            buttons.Add(new Button() { Width = 120d, Height = 75d, Content = "Advertisement 3" });
            buttons.Add(new Button() { Width = 120d, Height = 75d, Content = "Advertisement 4" });
            buttons.Add(new Button() { Width = 120d, Height = 75d, Content = "Advertisement 5" });

            // Storyboard AnimationRectanglePath = (Storyboard)this.Resources["StoryboardPath"];

            int count = 0;
            foreach (var item in buttons)
            {
                MainCanvas.Children.Add(item);
                DoubleAnimation myDoubleAnimation = new DoubleAnimation();
                myDoubleAnimation.From = 75 + (count * item.Width);
                myDoubleAnimation.To = 800;
                myDoubleAnimation.Duration = new Duration(TimeSpan.FromSeconds(15));
                myDoubleAnimation.AutoReverse = false;
                myDoubleAnimation.RepeatBehavior = RepeatBehavior.Forever;

                // Apply the animation to the button's Width property.
                item.BeginAnimation(Canvas.LeftProperty, myDoubleAnimation);
                count++;
            }
        }
    }
}

<Window x:Class="practiceOnAnimationClasses.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="563" Loaded="Window_Loaded">
    <Window.Resources>
        <!--<Storyboard x:Key="StoryboardPath">
            <DoubleAnimationUsingPath BeginTime="00:00:00" Duration="00:00:02" Storyboard.TargetName="button" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.X)" Source="X">
                <DoubleAnimationUsingPath.PathGeometry>
                    <PathGeometry Figures="M-3,2 L363,2 L363,83 L-3,83 z"/>
                </DoubleAnimationUsingPath.PathGeometry>
            </DoubleAnimationUsingPath>
            <DoubleAnimationUsingPath BeginTime="00:00:00" Duration="00:00:02" Storyboard.TargetName="button" Storyboard.TargetProperty="(UIElement.RenderTransform).(TransformGroup.Children)[3].(TranslateTransform.Y)" Source="Y">
                <DoubleAnimationUsingPath.PathGeometry>
                    <PathGeometry Figures="M-3,2 L363,2 L363,83 L-3,83 z"/>
                </DoubleAnimationUsingPath.PathGeometry>
            </DoubleAnimationUsingPath>
        </Storyboard>-->
    </Window.Resources>
    
    <Canvas Name="MainCanvas"></Canvas>
</Window>

fjparisIII wrote:

I'm using the the BackgroundWorker class to run my worker thread. In looking through MSDN, I don't see any way of getting the thread object of the background worker before it starts

fjparisIII wrote:

I would actually be shocked with disbelief if the BackgroundWorker thread doesn't automatically run with ApartmentState.STA

Mark Salsbery
Microsoft MVP - Visual C++

Mark Salsbery wrote:

I am sure curious if there is a threading problem with the encoder classes -
possibly COM related if those links are to be believed...