need to print groupbox with items on full page..

hi!!
 
i have a groupbox with items in my application..
(its basically a bill)
 
i need to print the whole groupbox with its items on full page..(ie A4 size page)..
 
my groupbox size is
 
the print preview dialog shows only half groupbox items...
 
this is my code
 

     void print(object sender, PrintPageEventArgs e)
      {
          
 
          int width = 1090;
          int height = 1650;
 
          
          Bitmap bmp = new Bitmap(bill_groupbox.Width,bill_groupbox.Height);
 
          Rectangle rec = new Rectangle(0, 0, bill_groupbox.Height, bill_groupbox.Width);
       
          bill_groupbox.DrawToBitmap(bmp,rec);
         
 
          e.Graphics.DrawImage(bmp, new RectangleF(0, 0, bill_groupbox.Width,bill_groupbox.Height));
          e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
          e.Graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
          e.Graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
         }

can someone please help me with this.. i have not done any kind of printing in c# earlier...
 
Thanks in Advance