ASP.NET Tutorial/ADO.net Database/DataTableReader

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Usage of in-memory, disconnected readers

   <source lang="csharp">

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

   Inherits="Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" > <head runat="server">

   <title>Create Data Reader</title>

</head> <body>

       <form id="form1" runat="server">
           <asp:Label runat="server" ID="Label1"></asp:Label>
       </form>

</body> </html> File: Default.aspx.cs using System; using System.Data; using System.Data.SqlClient; using System.Configuration; using System.Collections; using System.Web; using System.Text; using System.Web.UI; using System.Web.UI.WebControls; public partial class Default : System.Web.UI.Page {

   protected void Page_Load(object sender, EventArgs e)
   {
   DataSet data = new DataSet();
   SqlDataAdapter adapter = new SqlDataAdapter(
     "SELECT * FROM employees;SELECT * FROM customers",
     ConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString);
   adapter.Fill(data);
   DataTableReader reader = data.CreateDataReader();
       StringBuilder builder = new StringBuilder();
   do
   {
     while (reader.Read())
               builder.AppendFormat("{0} 
", reader[1]);
builder.Append("
");
   } while (reader.NextResult());
   reader.Close();
       Label1.Text = builder.ToString();
   }

}</source>