//DataTable以列分组var result = from r in dt.AsEnumerable()
group r by new { a = r.Field<string>(0), b = r.Field<string>(2) } into g
selectnew
{
key = g.Key,
count = g.Count()
};
var s = result.ToList();
posted on
2016-05-09 16:27小小乌龟把头藏
阅读(299)
评论(0)
编辑收藏举报