how to set report viewer page setup at run time in visual studio 2005

i want to set report viewer size. set page as A3 landscape at run time in vb.net visual studio 2005.

i got some solution but it has version problem.

          Dim pg As New System.Drawing.Printing.PageSettings()
                pg.Margins.Top = 0
                pg.Margins.Bottom = 0
                pg.Margins.Left = 0
                pg.Margins.Right = 0
                Dim Size As New System.Drawing.Printing.PaperSize
                Size = New Printing.PaperSize()
                Size.RawKind = 8
                pg.PaperSize = Size
  ReportViewer1.SetPageSettings(pg)

problem occure at last line.