protected void Page_Load(object sender, EventArgs e) { string sql = string.Format(@" select CustomerId,CustomerName from Customer "); DataTable dt = SqlHelper.GetTable(sql); Response.Write(ToolManager.ConvertToJsonStr(dt)); Response.End(); return; ////List<Customer> cus = new List<Customer>(); //StringBuilder result = new StringBuilder(); //result.Append("["); //// " [ ////{ "firstName":"Bill" , "lastName":"Gates" }, ////{ "firstName":"George" , "lastName":"Bush" }, ////{ "firstName":"Thomas" , "lastName": "Carter" } ////]"; //foreach (DataRow dr in dt.Rows) //{ // result.AppendFormat("{{'CustomerId':'{0}',CustomerName:'{1}'}},", dr["CustomerId"].ToString(), dr["CustomerName"].ToString()); // //cus.Add(new Customer() { CustomerId = dr["CustomerId"].ToString (), CustomerName = dr["CustomerName"].ToString () }); //} //result.Remove(result.Length - 1, 1); //result.Append("]"); //JsonConvert.SerializeObject(list); }