Linq分批次,每组1000条

///

/// 分组插入每次插入1000

///

///

///

private List>> GroupResult((IList Columns, IList> Rows) data)

{

var rows = data.Rows;

var q = from e in rows.Select((item, index) => new { index, item })

group e by e.index / 1000

into g

select g.Select(e => e.item).ToList();

return q.ToList();

}