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File: App_Code\Product.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.Collections;
using System.Collections.Generic;
public class Product
{
private static readonly string _connectionString;
private string _title;
private string _director;
public string Title
{
get { return _title; }
set { _title = value; }
}
public string Director
{
get { return _director; }
set { _director = value; }
}
public List<Product> GetAll(out long executionTime)
{
List<Product> results = new List<Product>();
SqlConnection con = new SqlConnection(_connectionString);
SqlCommand cmd = new SqlCommand("WAITFOR DELAY '0:0:03';SELECT Title, Director FROM Products", con);
con.StatisticsEnabled = true;
using (con)
{
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
Product newProduct = new Product();
newProduct.Title = (string)reader["Title"];
newProduct.Director = (string)reader["Director"];
results.Add(newProduct);
}
}
IDictionary stats = con.RetrieveStatistics();
executionTime = (long)stats["ExecutionTime"];
return results;
}
static Product()
{
_connectionString = WebConfigurationManager.ConnectionStrings["Products"].ConnectionString;
}
}
File: Web.config
<configuration>
<connectionStrings>
<add name="Products"
connectionString="Data Source=.\SQLEXPRESS;
AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
</connectionStrings>
</configuration>
File: Default.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void srcProducts_Selected(object sender, ObjectDataSourceStatusEventArgs e)
{
lblExecutionTime.Text = e.OutputParameters["executionTime"].ToString();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>Show Product</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<asp:ObjectDataSource
id="srcProducts"
TypeName="Product"
SelectMethod="GetAll"
Runat="server" OnSelected="srcProducts_Selected">
<SelectParameters>
<asp:Parameter Name="executionTime" Type="Int64" Direction="Output" />
</SelectParameters>
</asp:ObjectDataSource>
<br />
Execution time was
<asp:Label
id="lblExecutionTime"
Runat="server" />
milliseconds
</div>
</form>
</body>
</html>
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