DataTable以列分组

2024-10-17 00:13:17

//DataTable以列分组

var result = from r in dt.AsEnumerable()

            group r by new { a = r.Field<string>(), b = r.Field<string>() } into g

            select new

            {

                key = g.Key,

                count = g.Count()

            };

var s = result.ToList();

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