Transforming multiple shapes at a time in WPF

Question

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Hi all,

iam able to transform single shape at a time but how can we transform multiple shapes at the same time. I hope we can do this in WPF.

I have two buttons, first button will create rectangle shape, second button i want to transform the shape from one location to another location;

Code:

void Button1_Click(object sender, RoutedEventArgs e)
{		
  Point pt=new Point(100,90);//some point
  rect =new Rectangle
    {
	Stroke=Brushes.Blue,
	StrokeThickness=1
    };		
	rect.Width=90;
	rect.Height=60;		
	rect.Fill =Brushes.Coral;		
	Canvas.SetLeft(rect,pt.X);
	Canvas.SetTop(rect,pt.Y);				
	canvas1.Children.Add(rect);	      
}

void Button2_Click(object sender, RoutedEventArgs e)
{				
    GeneralTransform myTransform=rect.TransformToDescendant (rect);               
    Point pt=myTransform .Transform (new Point(100,50));
    Canvas.SetLeft(rect,pt.X-rect.Width/2);
    Canvas.SetTop(rect,pt.Y-rect.Height/2);                 
}

each time when i click on button1 rectangle shape is created. and when i click on button 2 only one rectangle is transforming.

I want multiple rectangles transform to another location.
plz some one give me idea to transform multiple shapes at a time.

Thanks,

Posted 2-Nov-11 20:48pm

KiranBabu M

Updated 2-Nov-11 23:54pm

v2

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UJimbo · Accepted Answer · 2011-11-03T00:31:00

First, define a List destined to hold all the rectangles you create on Button1 press

List<rectangle> rectList = new List<rectangle>();
</rectangle></rectangle>

Don't copy the last two /rectangle with the brackets, I gave up trying to make the editor display it appropriately...

Then:

private void Button1_Click(object sender, RoutedEventArgs e)
{
    Point pt = new Point(100, 90);//some point
    Rectangle rect = new Rectangle
    {
       Stroke = Brushes.Blue,
       StrokeThickness = 1
    };
   rect.Width = 90;
   rect.Height = 60;
   rect.Fill = Brushes.Coral;
   Canvas.SetLeft(rect, pt.X);
   Canvas.SetTop(rect, pt.Y);
   canvas1.Children.Add(rect);

   rectList.Add(rect);
}

private void Button2_Click(object sender, RoutedEventArgs e)
{
    foreach (Rectangle rect in rectList)
    {
        
            GeneralTransform myTransform = rect.TransformToDescendant(rect);
            Point pt = myTransform.Transform(new Point(100, 50));
            Canvas.SetLeft(rect, pt.X - rect.Width / 2);
            Canvas.SetTop(rect, pt.Y - rect.Height / 2);
        
    }
}