Mega Code Archive
Creating a Custom ObjectDataSource Control
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File: ProductDataSource.cs
using System;
using System.Data;
using System.Data.SqlClient;
using System.Web.Configuration;
using System.Web.UI.WebControls;
namespace CustomControl.Samples
{
public class ProductDataSource : ObjectDataSource
{
public ProductDataSource()
{
this.TypeName = "CustomControl.Samples.ProductsComponent";
this.SelectMethod = "GetProducts";
}
}
public class ProductsComponent
{
private readonly string _conString;
public SqlDataReader GetProducts()
{
SqlConnection con = new SqlConnection(_conString);
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
cmd.CommandText = "SELECT Title,Director,DateReleased FROM Products"; // Execute command
con.Open();
return cmd.ExecuteReader(CommandBehavior.CloseConnection);
}
public ProductsComponent()
{
_conString = 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#" %>
<%@ Register TagPrefix="custom" Namespace="CustomControl.Samples" %>
<!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 id="Head1" runat="server">
<title>Show Product DataSource</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:GridView
id="grdProducts"
DataSourceID="srcProducts"
Runat="server" />
<custom:ProductDataSource
id="srcProducts"
Runat="server" />
</div>
</form>
</body>
</html>
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