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c# Programming Glossary: r.idLINQ to SQL - How to efficiently do either an AND or an OR search for multiple criteria http://stackoverflow.com/questions/2500972/linq-to-sql-how-to-efficiently-do-either-an-and-or-an-or-search-for-multiple-c SamplesCriteria criteria var results from r in Table where r.Id criteria.SampleId r.Status.SampleStatusId criteria.SampleStatusId.. of bool isOr true or false var results Data.BoolWhere r r.Id criteria.SampleId isOr .BoolWhere r r.Status.SampleStatusId..
http://stackoverflow.com/questions/3404975/left-outer-join-in-linq where l.Key r.Key select new JoinPair LeftId l.Id RightId r.Id but for left outer join I need a solution. Mine is something.. rights select new JoinPair LeftId l.Id RightId l.Key r.Key r.Id 0 where JoinPair is a class public class JoinPair long leftId..
LINQ Expression to return Property value? http://stackoverflow.com/questions/567963/linq-expression-to-return-property-value I want to generalize var local_refill_ids Refills.Select r r.Id .Take 20 .ToArray var groups local_refill_ids .Select Parameter.. .SelectMany g Refills.Where r g.Parameters.Contains r.Id .ToArray Results in this SQL code SELECT t0 . Id ... t0 . Version..
foreach + break vs linq FirstOrDefault performance difference http://stackoverflow.com/questions/8214055/foreach-break-vs-linq-firstordefault-performance-difference T var iterLookup new IterationLookup RangeItems ranges r r.Id var linqLookup new LinqLookup RangeItems ranges r r.Id Stopwatch.. r r.Id var linqLookup new LinqLookup RangeItems ranges r r.Id Stopwatch timer new Stopwatch timer.Start for int i 0 i 1000000.. as well IList RangeItem items ranges.OrderByDescending r r.Id .ToList timer.Restart for int i 0 i 1000000 i DateTime day GetRandomDay..
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