Using-Multiple-ResultSets-in-a-single-DbDataReader

ADO Net Database ASP.Net Tutorial


            <%@ Page Language="C#" 
         AutoEventWireup="true" 
         CodeFile="Default.aspx.cs" 
         Inherits="MultipleResultSets" %>



   Using Multiple ResultSets in a single DbDataReader


   
      
      
      Authors


   


File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
using System.Configuration;
public partial class MultipleResultSets : System.Web.UI.Page
{
   protected void Page_Load(object sender, EventArgs e)
   {
      string connString = ConfigurationManager.ConnectionStrings["Northwind"].ConnectionString;
      SqlConnection conn = null;
      SqlDataReader reader = null;
      try
      {
         conn = new SqlConnection(connString);
         conn.Open();
         string sql = "SELECT * FROM Products; SELECT * FROM Customers;";
         SqlCommand cmd = new SqlCommand(sql, conn);
         reader = cmd.ExecuteReader();
         grdAuthors.DataSource = reader;
         grdAuthors.DataBind();
         reader.NextResult();
         grdBooks.DataSource = reader;
         grdBooks.DataBind();
      }
      catch (Exception ex)
      {
          labMsg.Text = "Error occurred accessing the database";
          labMsg.Text += "
" + ex.Message;
      }
      finally
      {
         if (reader != null) reader.Close();
         if (conn != null) conn.Close();
      }
    }
}