ADO Net Database ASP.Net Tutorial

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs"  Inherits="UsingCommandBuilder" %>



   Updating a DataSet with DbCommandBuilder


   
      
         

Updating a DataSet with DbCommandBuilder


         
         This example illustrates how to write the changes in a 
         DataSet using a DbCommandBuilder
         
      

Authors


      
      
         
         
      

   


File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.OleDb;
public partial class UsingCommandBuilder : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
       string connString = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=";
       connString += Server.MapPath("~/Book.mdb") + ";";
       DataSet ds = new DataSet();
       try
       {
         OleDbConnection conn = new OleDbConnection(connString);
         OleDbDataAdapter adapter = new OleDbDataAdapter();
         string sqlSelect = " SELECT * FROM Authors";
         OleDbCommand cmdSelect = new OleDbCommand(sqlSelect, conn);
         adapter.SelectCommand = cmdSelect;
         OleDbCommandBuilder cb = new OleDbCommandBuilder(adapter);
         adapter.Fill(ds, "AuthorsTable");
         DataRow dr1 = ds.Tables["AuthorsTable"].NewRow();
         dr1["AuthorName"] = "A";
         ds.Tables["AuthorsTable"].Rows.Add(dr1);
         DataRow dr3 = ds.Tables["AuthorsTable"].Rows[0];
         dr3["AuthorName"] = "B";
         //ds.Tables["AuthorsTable"].Rows[2].Delete();
         adapter.Update(ds, "AuthorsTable");
         grdAuthors.DataSource = ds.Tables["AuthorsTable"].DefaultView;
         grdAuthors.DataBind();
       }
       catch (Exception ex)
       {
          labMsg.Text = "Error occurred accessing the database";
          labMsg.Text += "
" + ex.Message;
       }
    }
}