将图片保存到数据库中及转换

  private byte[] getBytes(string imgpath)
        {
            try
            {
                if (string.IsNullOrEmpty(imgpath)) { return null; }
                else
                {
                    //将图片转换成二进制流     
                    FileStream stream = new FileStream(imgpath, FileMode.Open);
                    byte[] imgdata = new byte[stream.Length];
                    stream.Read(imgdata, 0, imgdata.Length);
                    stream.Dispose();
                    //将二进制流转换成图片     
                    //MemoryStream ms = new MemoryStream(imgdata);     
                    //Image returnImage = Image.FromStream(ms);     
                    //this.pictureBox1.Image = returnImage;       
                    return imgdata;
                }
            }
            catch (System.Exception ex)
            {
                return null;
            }
        }