Set Height and Width to any Images in asp

Set Height and Width to any Images in asp

        string filename1 = "", filename2 = "";
        string str1, str2;

if (FilePhoto1.HasFile)
            {
                string extension = Path.GetExtension(FilePhoto1.FileName);
                Stream strm = FilePhoto1.PostedFile.InputStream;
                using (var image = System.Drawing.Image.FromStream(strm))
                {
                    String Size = image.Size.ToString();
                    int newWidth = 200; // New Width of Image in Pixel 
                    int newHeight = 200; // New Height of Image in Pixel 
                    var thumbImg = new Bitmap(newWidth, newHeight);
                    var thumbGraph = Graphics.FromImage(thumbImg);
                    thumbGraph.CompositingQuality = CompositingQuality.HighQuality;
                    thumbGraph.SmoothingMode = SmoothingMode.HighQuality;
                    thumbGraph.InterpolationMode = InterpolationMode.HighQualityBicubic;
                    var imgRectangle = new Rectangle(0, 0, newWidth, newHeight);
                    thumbGraph.DrawImage(image, imgRectangle);
                    filename1 = Path.GetFileName(FilePhoto1.FileName);
                    Random rd = new Random();
                    int s = rd.Next();
                    str2 = s + FilePhoto1.PostedFile.FileName;

                    string targetPath = Server.MapPath("~/FolderName/") + str2;
                    thumbImg.Save(targetPath, image.RawFormat);
                    // FilePhoto1.PostedFile.SaveAs(Server.MapPath("~/FolderName/" + thumbImg));

                  //  cmd.Parameters.AddWithValue("@Photo1", str2);
                }
            }