09 2009 档案

通过DataTable 的列Expression实现 SUM Group by 功能
摘要: DataTable dtData = new DataTable(); dtData.Columns.Add("deptID"); dtData.Columns.Add("DateFlag"); DataColumn dc = new DataColumn(); dc.ColumnName = "value1"; dc.DataType = typeof(decimal); dtData.Colu...阅读全文
posted @ 2009-09-03 16:58 破刀 阅读(1425) | 评论 (0) 编辑