I want to command

Write down following code snippet in c# to take backup. One thing remeber that creadential should be changed..

using System;
using System.Data;
using System.Collections;

using Microsoft.SqlServer.Management.Common;
using Microsoft.SqlServer.Management.Smo;

class Program
{
static void Main(string[] args)
{
BackupDeviceItem bdi =
new BackupDeviceItem("AdventureWorks.bak", DeviceType.File);

Backup bu = new Backup( );
bu.Database = "AdventureWorks";
bu.Devices.Add(bdi);
bu.Initialize = true;

// add percent complete and complete event handlers
bu.PercentComplete +=
new PercentCompleteEventHandler(Backup_PercentComplete);
bu.Complete +=new ServerMessageEventHandler(Backup_Complete);

Server server = new Server("localhost");
bu.SqlBackup(server);

Console.WriteLine(Environment.NewLine + "Press any key to continue.");
Console.ReadKey( );
}

protected static void Backup_PercentComplete(
object sender, PercentCompleteEventArgs e)
{
Console.WriteLine(e.Percent + "% processed.");
}

protected static void Backup_Complete(object sender, ServerMessageEventArgs e)
{
Console.WriteLine(Environment.NewLine + e.ToString( ));
}
}