private void Update_Foto()
        {
            try
            {
                var BL = new tb_me_productosBL();
                var BE = new tb_me_productos();

                BE.moduloid = moduloiddes.SelectedValue.ToString();
                if (moduloiddes.SelectedValue.ToString() == "0000")
                {
                    MessageBox.Show("Seleccione Almacen", "Information");
                    return;
                }
                BE.local = localdes.SelectedValue.ToString();
                BE.productid = productid.Text.Trim();
                BE.docname = _nombreFoto.ToString();

                var ms = new System.IO.MemoryStream();
                if (modulo == "0500")
                {
                    if (go_foto.Image != null)
                    {
                        go_foto.Image.Save(ms, System.Drawing.Imaging.ImageFormat.Jpeg);
                    }
                }
                BE.Foto = ms.GetBuffer();
                BL.Update_Foto(EmpresaID, BE);
            }
            catch (Exception)
            {
                throw;
            }
        }