I use devexpress's XtraUserControl, then the UserControl is filled with a XtraTreeList, i can see the UserControl and XtraTreeList, but when print the chart, i can only see the XtraUserControl, i couldn't see the XtraTreeList.

is the chart is not what i see is what i get???

what can i do?

Thanks, Stoyo!

Yes, i can print UserControl(A) which is filled with a XtraTreeList,
but if UserControl(A) is a child control of another UserControl(B), when i print UserControl(B), i still can not see the XtraTreeList,

i'm confused! why?

Here is my codes:

private void diagramView_PaintControl(object sender, PaintControlEventArgs e)
       {
           UserControl control = e.Node.Control as UserControl;
           if (control != null)
           {
               Rectangle rec = control.DisplayRectangle;
               System.Drawing.Bitmap bitMap = new Bitmap(rec.Width, rec.Height);
               control.DrawToBitmap(bitMap, rec);

               System.IO.MemoryStream stream = new System.IO.MemoryStream();
               bitMap.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
               System.Drawing.Image image = Image.FromStream(stream, true);
              
               if (control is UserControlB)
               {
                   foreach (Control ctrl in control.Controls)
                   {
                       DrawControl(e, ctrl);
                   }
               }
               e.Graphics.DrawImage(image, e.PaintRect);
           }
           e.Handled = true;
       }

       private void DrawControl(PaintControlEventArgs e, Control ctrl)
       {
           if (ctrl is TreeList)
           {
               Rectangle rec = ctrl.DisplayRectangle;
               System.Drawing.Bitmap bitMap = new Bitmap(rec.Width, rec.Height);
               ctrl.DrawToBitmap(bitMap,rec);
              
               System.IO.MemoryStream stream = new System.IO.MemoryStream();
               bitMap.Save(stream, System.Drawing.Imaging.ImageFormat.Jpeg);
               System.Drawing.Image image = Image.FromStream(stream, true);
               e.Graphics.DrawImage(image, rec);
           }
           else
           {
               foreach (Control control in ctrl.Controls)
               {
                   DrawControl(e, control);
               }
           }
       }

use the above control, i still can not print the treeList in usercontrolb.

I have found a solution, this is the final rease:

private float xRate;
       private float yRate;
       private void diagramView_PaintControl(object sender, PaintControlEventArgs e)
       {
           UserControl control = e.Node.Control as UserControl;
           if (control != null)
           {
               xRate = 0F;
               yRate = 0F;
               Rectangle rec = control.DisplayRectangle;
               System.Drawing.Bitmap bitMap = new Bitmap(rec.Width, rec.Height);
               control.DrawToBitmap(bitMap, rec);
               e.Graphics.DrawImage(bitMap, e.PaintRect);

               xRate = e.PaintRect.Width / rec.Width;
               yRate = e.PaintRect.Height / rec.Height;

               if (control is UserControlB)
               {
                   foreach (Control ctrl in control.Controls)
                   {
                       DrawControl(e, ctrl);
                   }
               }
           }
           e.Handled = true;
       }

       private void DrawControl(PaintControlEventArgs e, Control ctrl)
       {
           if (ctrl is UserControlA)
           {
               Rectangle rec = ctrl.DisplayRectangle;
               System.Drawing.Bitmap bitMap = new Bitmap(rec.Width, rec.Height);
               ctrl.DrawToBitmap(bitMap, rec);

               RectangleF recF = new RectangleF();
               recF.X = e.PaintRect.X + ctrl.Bounds.X * xRate;
               recF.Y = e.PaintRect.Y + ctrl.Bounds.Y * yRate;
               recF.Width = rec.Width * xRate;
               recF.Height = rec.Height * yRate;

               e.Graphics.DrawImage(bitMap, recF);
           }
           else
           {
               foreach (Control control in ctrl.Controls)
               {
                   DrawControl(e, control);
               }
           }
       }

Hope this will help the guys who have the same problem.

Also, i have another problem:
ControlNode controlNode = new ControlNode(diagramView);
           controlNode.Bounds = new RectangleF(0, 0, UserControl.Width, UserControl.Height);
           controlNode.Control = UserControl;
           diagram.Nodes.Add(controlNode);
If the Width and Height is 20/30, when display the chart, the Width and Height will be bigger than we want. I tried to add controlNode's constraints to limited the width and height to 20/30, but it's no use.

Thanks!