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Timeline for answer to How to group by multiple columns using LINQ by user2897701

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Apr 26, 2022 at 16:46 comment added moudrick An expression tree may not contain a tuple literal. This is why .GroupBy(x => new { x.Column1, x.Column2})
Jul 18, 2018 at 13:32 comment added Sahidul Islam .GroupBy(x => new { x.Column1, x.Column2})
Nov 1, 2017 at 15:26 history edited Nathan Tregillus CC BY-SA 3.0
added missing paren
Mar 14, 2017 at 14:59 history answered user2897701 CC BY-SA 3.0