Please help!! Is there a better way to write this LINQ query

Posted by Raj Aththanayake on Stack Overflow See other posts from Stack Overflow or by Raj Aththanayake
Published on 2010-05-24T05:44:52Z Indexed on 2010/05/24 5:51 UTC
Read the original article Hit count: 160

Filed under:

Hi Is there a better simplified way to write this query. My logic is if collection contains customer ids and countrycodes, do the query ordey by customer id ascending. If there are no contain id in CustIDs then do the order by customer name. Is there a better way to write this query? I'm not really familiar with complex lambdas.

 var custIdResult =  (from Customer c in CustomerCollection
                                where (c.CustomerID.ToLower().Contains(param.ToLower()) &&                                 
           (countryCodeFilters.Any(item => item.Equals(c.CountryCode))) )
                                      select c).ToList();

                if (custIdResult.Count > 0)
                {
                    return from Customer c in custIdResult
                       ( c.CustomerName.ToLower().Contains(param.ToLower()) &&
                         countryCodeFilters.Any(item => item.Equals(c.CountryCode)) ) 
                       orderby c.CustomerID ascending
                       select c;
                }
                else
                {
                    return from Customer c in CustomerCollection
                       where ( c.CustomerName.ToLower().Contains(param.ToLower()) &&
                               countryCodeFilters.Any(item => item.Equals(c.CountryCode)) )
                       orderby c.CustomerName descending
                       select c;
                }

© Stack Overflow or respective owner

Related posts about LINQ