using System; using System.Collections.Generic; using System.Data; using System.Text; namespace Gzcms.Common { public class CreateTable { public static DataTable getTable() { //1.创建 datatable DataTable dt = new DataTable("datatable");//可以给表创建一
DataTable分组统计: .用两层循环计算,前提条件是数据已经按分组的列排好序的. DataTable dt = new DataTable(); dt.Columns.AddRange(new DataColumn[] { new DataColumn("name", typeof(string)), new DataColumn("sex", typeof(string)), new DataColumn("score", typeof(
1. DataTable读取列表 DataSet ds = new DataSet();// 省略ds的Fill代码DataTable products = ds.Tables["Product"];IEnumerable<DataRow> rows = from p in products.AsEnumerable() select p;foreach (DataRow row in rows){ Console
1. DataTable读取列表 DataSet ds = new DataSet();// 省略ds的Fill代码DataTable products = ds.Tables["Product"];IEnumerable<DataRow> rows = from p in products.AsEnumerable() select p;foreach (DataRow row in rows){ Console.WriteLine(row.Field<string
DataTable dt = GetDetails().Tables[0]; //获取可用的DataTable // var m = dt.AsEnumerable().Last<DataRow>(); 返回DataTable最后一行DataRow //var m = dt.AsEnumerable().First<DataRow>(); 返回DataTable第一行DataRow //var m = dt.AsEn