vb.net how to chart code example

Example: save chart vb.net

' Create a new save file dialog
   Dim saveFileDialog1 As New SaveFileDialog()
   
   ' Sets the current file name filter string, which determines 
   ' the choices that appear in the "Save as file type" or 
   ' "Files of type" box in the dialog box.
   saveFileDialog1.Filter = "Bitmap (*.bmp)|*.bmp|JPEG (*.jpg)|*.jpg|EMF (*.emf)|*.emf|PNG (*.png)|*.png|SVG (*.svg)|*.svg|GIF (*.gif)|*.gif|TIFF (*.tif)|*.tif"
   saveFileDialog1.FilterIndex = 2
   saveFileDialog1.RestoreDirectory = True
   
   ' Set image file format
   If saveFileDialog1.ShowDialog() = DialogResult.OK Then
      Dim format As ChartImageFormat = ChartImageFormat.Bmp
      
      If saveFileDialog1.FileName.EndsWith("bmp") Then
         format = ChartImageFormat.Bmp
      Else
         If saveFileDialog1.FileName.EndsWith("jpg") Then
            format = ChartImageFormat.Jpeg
         Else
            If saveFileDialog1.FileName.EndsWith("emf") Then
               format = ChartImageFormat.Emf
            Else
               If saveFileDialog1.FileName.EndsWith("gif") Then
                  format = ChartImageFormat.Gif
               Else
                  If saveFileDialog1.FileName.EndsWith("png") Then
                     format = ChartImageFormat.Png
                  Else
                     If saveFileDialog1.FileName.EndsWith("tif") Then
                        format = ChartImageFormat.Tiff
                     Else
                        If saveFileDialog1.FileName.EndsWith("svg") Then
                           format = ChartImageFormat.Svg
                        End If
                     End If 
                  End If ' Save image
               End If
            End If
         End If
      End If
      Chart1.SaveImage(saveFileDialog1.FileName, format)
   End If