Question

如何在datatable中使用groupby进行分组统计

Answer 1

dt.Columns.Add(dc1);
dt.Columns.Add(dc2);
dt.Columns.Add(dc3);
dt.Columns.Add(dc4);

DataRow dr = dt.NewRow();
dr["areaid"] = "北京";
dr["house"] = "北京仓库";
dr["seq"] = "2";
dr["remark"] = "货到付款";
dt.Rows.Add(dr);

DataRow dr1 = dt.NewRow();
dr1["areaid"] = "北京";
dr1["house"] = "上海仓库";