Mega Code Archive
Executing a Command
<![CDATA[
File: App_Code\Product.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.Collections.Generic;
public class Product
{
private static readonly string _connectionString;
private int _id;
private string _title;
private string _director;
public int Id
{
get { return _id; }
set { _id = value; }
}
public string Title
{
get { return _title; }
set { _title = value; }
}
public string Director
{
get { return _director; }
set { _director = value; }
}
public void Update(int id, string title, string director)
{
SqlConnection con = new SqlConnection(_connectionString);
SqlCommand cmd = new SqlCommand("UPDATE ProductS SET Title=@Title,Director=@Director WHERE Id=@Id", con);
cmd.Parameters.AddWithValue("@Title", title);
cmd.Parameters.AddWithValue("@Director", director);
cmd.Parameters.AddWithValue("@Id", id);
using (con)
{
con.Open();
cmd.ExecuteNonQuery();
}
}
public void Delete(int id)
{
SqlConnection con = new SqlConnection(_connectionString);
SqlCommand cmd = new SqlCommand("DELETE ProductS WHERE Id=@Id", con);
cmd.Parameters.AddWithValue("@Id", id);
using (con)
{
con.Open();
cmd.ExecuteNonQuery();
}
}
public List<Product> GetAll()
{
List<Product> results = new List<Product>();
SqlConnection con = new SqlConnection(_connectionString);
SqlCommand cmd = new SqlCommand("SELECT Id,Title,Director FROM Products", con);
using (con)
{
con.Open();
SqlDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
Product newProduct = new Product();
newProduct.Id = (int)reader["Id"];
newProduct.Title = (string)reader["Title"];
newProduct.Director = (string)reader["Director"];
results.Add(newProduct);
}
}
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: index.aspx
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<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"
DataKeyNames="Id"
AutoGenerateEditButton="true"
AutoGenerateDeleteButton="true"
Runat="server" />
<asp:ObjectDataSource
id="srcProducts"
TypeName="Product"
SelectMethod="GetAll"
UpdateMethod="Update"
DeleteMethod="Delete"
Runat="server" />
</div>
</form>
</body>
</html>
]]>