Hi Yaad Dhakal, GroupBy in LINQ is used to group elements that share a key. Syntax var grouped = items.GroupBy(x => x.KeyProperty); It returns groups of type IGrouping . Example var students = new[] { new { Name = "A", Grade = "A" }, new { Name = "B", Grade = "B" }, new { Name = "C", Grade = "A" } }; var byGrade = students.GroupBy(s => s.Grade); foreach (var group in byGrade) { Console.WriteLine($"Grade: {group.Key}"); foreach (var student in group) Console.WriteLine($" {student.Name}"); } Glad to help! Please mark this answer as the accepted answer if it helped you out!

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GroupBy in Linq

yaad dhakal

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GroupBy in Linq

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