Mega Code Archive
Write the changes in a DataSet using a DbDataAdapter
<![CDATA[
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="UpdatingDataSet" %>
<!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>Updating a DataSet</title>
<body>
<form id="form1" runat="server">
<div id="container">
<h1>Updating a DataSet</h1>
<h2>Authors</h2>
<asp:GridView ID="grdAuthors" runat="server" />
<asp:Label ID="labMsg" runat="server" />
</div>
</form>
</body>
</html>
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 UpdatingDataSet : 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("~/App_Data/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;
string sqlInsert = "INSERT INTO Authors (AuthorName)";
sqlInsert += "VALUES (@name) ";
OleDbCommand cmdInsert = new OleDbCommand(sqlInsert, conn);
OleDbParameter param = new OleDbParameter("@name",OleDbType.VarChar);
param.SourceColumn = "AuthorName";
param.SourceVersion = DataRowVersion.Current;
cmdInsert.Parameters.Add(param);
adapter.InsertCommand = cmdInsert;
adapter.Fill(ds, "AuthorsTable");
DataRow dr1 = ds.Tables["AuthorsTable"].NewRow();
dr1["AuthorName"] = "R";
ds.Tables["AuthorsTable"].Rows.Add(dr1);
DataRow dr2 = ds.Tables["AuthorsTable"].NewRow();
dr2["AuthorName"] = "A";
ds.Tables["AuthorsTable"].Rows.Add(dr2);
adapter.Update(ds, "AuthorsTable");
grdAuthors.DataSource = ds.Tables["AuthorsTable"].DefaultView;
grdAuthors.DataBind();
}
catch (Exception ex)
{
labMsg.Text = "Error occurred accessing the database";
labMsg.Text += "<br/>" + ex.Message;
}
}
}
]]>