private void GetBookType()
{
BookList btl = new BookList();
btl = btl.GetByBookTypeID(new Guid(ddlGenre.SelectedValue));
foreach (Book book in btl.List)
{
string filename = Path.Combine(Server.MapPath("Images"), book.ID + book.MimeType);
string relativepath = string.Format("Images/{0}", book.ID + book.MimeType);
book.PhotoName = relativepath;
Photo.ByteArrayToFile(book.Cover, filename);
}
rptBooks.DataSource = btl.List;
rptBooks.DataBind();
}