DataAdapter is the bridge between an in-memory table and a physical table. : DataAdapter « ADO.net Database « ASP.NET Tutorial






  1. ASP.NET Tutorial
  2. ADO.net Database
  3. DataAdapter
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;

    public DataTable GetAll()
    {
        SqlDataAdapter dad = new SqlDataAdapter("SELECT Title,Director FROM Products", _connectionString);

        DataTable dtblProducts = new DataTable();

        dad.Fill(dtblProducts);

        return dtblProducts;
    }

    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: ShowProduct.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"
        Runat="server" />

     <asp:ObjectDataSource
        id="srcProducts"
        TypeName="Product"
        SelectMethod="GetAll"
        Runat="server" />

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








18.22.DataAdapter
18.22.1.DataAdapter is the bridge between an in-memory table and a physical table.
18.22.2.Performing Batch Updates