//使用聚合函数 max ,sum ,count .... private void ComputeBySalesSalesID(DataSet dataSet) { // Presumes a DataTable named "Orders" that has a column named "Total." DataTable table; table = dataSet.Tables["Orders"];
[原文发表地址] Beginning LightSwitch in VS 2012 Part 4: Too much information! Sorting and Filtering Data with Queries [原文发表时间] 2012-08-15 18:03 说明:本文是将之前所编的Visual Studio LightSwitch 2011 博文更新到Visual Studio 2012 中的LightSwitch, 若要查看原文版本,请点击这里. 欢迎来到开始Visual
一 复制DataTable中符合条件的DataRow到新的DataTable中 One: DataTable TableTemp = new DataTable();//临时table DataTable tableAd = new Web.DAL.FreeBase().TranSQLGetTable("select a.ClassName,b.ParentId,b.Name,b.Pic,b.Url,b.Sorts from AdClass a inner join Ad b on a.Id=b
public void CreateTable() { //创建表 DataTable dt = new DataTable(); //1.添加列 dt.Columns.Add("Name", typeof(string)); //数据类型为 文本 //2.通过列架构添加列 DataColumn age = new DataColumn("Age", typeof(Int32)); //数据类型为 整形 DataColumn Time = new DataColum
public void CreateTable() { //创建表 DataTable dt = new DataTable(); //1.添加列 dt.Columns.Add("Name", typeof(string)); //数据类型为 文本 //2.通过列架构添加列 DataColumn age = new DataColumn("Age", typeof(Int32)); //数据类型为 整形 DataColumn Time = new DataColum
