public List GetList(string name, string product)
{
var table = from c in _db.BBCustomer
where (!string.IsNullOrEmpty(name) ? c.Name.Contains(name) : true) &&
(!string.IsNullOrEmpty(product) ? c.ProductName.Contains(product) : true)
orderby c.CID descending
select c;
return table.ToList();
}