DataTable CreateTable() { DataTable dtable = new DataTable(); DataColumn dc; //MId CId FId PId dc = new DataColumn("MId", Type.GetType("System.Int32")); dtable.Columns.Add(dc); dc = new DataColumn("CId", Type.GetType("Sy
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 = (from x in dsResult.Tables[0].AsEnumerable() where DataTrans.CBoolean(x["IsChecked"]) == true group x by new { no = x.Field<string>("NO"), ptno = x.Field<string>("PTNO"), ver = x.Field<int>(&q
DataTable ReturnDt = new DataTable("Tab_Result"); ReturnDt.Columns.AddRange(new DataColumn[] { new DataColumn("序号", typeof(int)), new DataColumn("分公司名称", typeof(string)), new DataColumn("销售件数", typeof(int)), new Dat
public List<T> ConvertToList<T>(DataTable dt) where T : new() { // 定义集合 List<T> ts = new List<T>(); // 获得此模型的类型 Type type = typeof(T); string tempName = "";