Creating LINQ to SQL Entities : LINQ Entities « LINQ « ASP.NET Tutorial

File: ~\App_Code\Product.cs

using System;
using System.Data.Linq.Mapping;

[Table]
public class Product
{
    [Column(IsPrimaryKey=true, IsDbGenerated=true)]
    public int Id { get; set; }

    [Column]
    public string Title { get; set; }

    [Column]
    public string Director { get; set; }

    [Column]
    public DateTime DateReleased { get; set; }

    [Column]
    public decimal Totals { get; set; }
}



<%@ Page Language="C#" %>
<%@ Import Namespace="System.Web.Configuration" %>
<%@ Import Namespace="System.Linq" %>
<%@ Import Namespace="System.Data.Linq" %>
<!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 btnSearch_Click(object sender, EventArgs e)
    {
        string conString = WebConfigurationManager.ConnectionStrings["Products"] .ConnectionString;
        DataContext db = new DataContext(conString);
        var tProduct = db.GetTable<Product>();

        grdProducts.DataSource = tProduct.Where( m => m.Director.Contains(txtDirector.Text) );
        grdProducts.DataBind();
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">

</head>
<body>
    <form id="form1" runat="server">
    <div>

    <asp:Label
        id="lblDirector"
        Text="Director:"
        AssociatedControlID="txtDirector"
        Runat="server" />
    <asp:TextBox
        id="txtDirector"
        Runat="server" />
    <asp:Button
        id="btnSearch"
        Text="Search"
        OnClick="btnSearch_Click"
        Runat="Server" />


    <asp:GridView
        id="grdProducts"
        Runat="server" />

    </div>
    </form>
</body>
</html>


File: Web.config

<configuration>
  <connectionStrings>
    <add name="Products" 
         connectionString="Data Source=.\SQLEXPRESS;
         AttachDbFilename=|DataDirectory|MyDatabase.mdf;Integrated Security=True;User Instance=True" />
  </connectionStrings>
</configuration>
17.6.LINQ Entities
	17.6.1.	Creating LINQ to SQL Entities