public string AddCategory(string categoryCode, string categoryName, string pid, int status, List<string> attrlist, List<string> saleattr, string description, string operateid, string clientid)
{
var dal = new ProductsDAL();
return dal.AddCategory(categoryCode, categoryName, pid, status, string.Join(",", attrlist), string.Join(",", saleattr), description, operateid, clientid);
}