WPF

 Grid mygrid;

 private MouseButtonEvent MouseLeftButtonDown(Object sender, MouseButtonEventArgs e){
    grid = sender as Grid;
    if(grid!= null){
          mygrid = grid;
    }
}

private MouseEventHandler MoveChildObject(Object sender, MouseEventHandler e){
    if(mygrid != null){
        Point p = Mouse.GetPosition(canvas);
        ControlGrid.SetValue(Canvas.TopProperty, p.Y);
        ControlGrid.SetValue(Canvas.LeftProperty, p.X);
    }
 }

private MouseButtonEvent mouseLeave(Object sender, MouseButtonEventArgs e){
     mygrid = null;
}

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
    <Grid>
        <Canvas x:Name="ControlCanvas" Background="AliceBlue" MouseOver="MoveChildObject" >
            <Grid x:Name="ControlGrid" Width="100" Height="40" MouseLeftButtonUp="mouseLeave" MouseLeftButtonDown="MouseLeftButtonDown" >
                <Rectangle Fill="Black"/>
            </Grid>
        </Canvas>
        
    </Grid>
</Window>

ComboBox
   Grid(templateRoot)
   Popup (PART_Popup)
      ToggleButton (toggleButton)
         Border (templateRoot)
            Border (splitBorder)
               Path (Arrow)
   ContentPresenter (contentPresenter)
      TextBlock

public void setImage(Image images,string url)
        {
            
            if (images.Dispatcher.CheckAccess())
            {
                MessageBox.Show("ciao");
                Del ert = new Del(setImage);
                
                images.Dispatcher.Invoke(ert, new object[] { images, url });
                BitmapImage img = new BitmapImage();
                img.BeginInit();
                img.UriSource = new Uri(url);
                img.EndInit(); // Getting exception here 
                images.Source = img;
            }
            else
            {
                images.Dispatcher.BeginInvoke(new Del(setImage), DispatcherPriority.Normal,
                                                     new object[] { images, url });
                //images.Dispatcher.Invoke(new Action(Esc));
            }
        }
 

        public void StreamImg()
        {
            while (true)
            {
                var date = DateTime.Today.Hour;
                setImage(image1, @"http://ipaddress/jpg/image.jpg" + "?" + date);
                Thread.Sleep(1000);
             }
        }

columbos14927 wrote:

the automaticly generated columns are not in the order that i would like them to be