... Method, var… LINQ2 Objects2: c c ví dụ LINQ to ObjectsXLINQ: ví dụ LINQ to XML. C n copy file cd_catalog.xml và contacts.xml ra thư m c C:\\DLINQ: ví dụ LINQ to SQL. C n c i MS-SQL 2005 ... { Console.WriteLine(item); } Console.ReadLine(); } }}Khi c LINQ using System;using System .Linq; namespace Demo01{ class Program { static void Main(string[] args) { string[] ... NameAggregationAggregate,Average,Count,LongCount,Max,Min,SumConversionCast,OfType,ToArray,ToDictionary,ToList,ToLookup,ToSequenceElementDefaultIfEmpty,ElementAt,ElementAtOrDefault,First,FirstOrDefault,Last,LastOrDefault,Single,SingleOrDefaultEqualityEqualAllGenerationEmpty,Range,RepeatGroupingGroupByJoiningGroupJoin,JoinOrderingOrderBy,ThenBy,OrderByDescending,ThenByDescending,ReversePartitioningSkip,SkipWhile,Take,TakeWhileQuantifiersAll,Any,ContainsRestrictionWhereSelectionSelect,SelectManySetConcat,Distinct,Except,Intersect,Unionhttp://msdn.microsoft.com/en-us/vcsharp/aa336746.aspx...