protected void Button1_Click(object sender, EventArgs e)
    {
        SQLDMO.Backup oBackup = new SQLDMO.BackupClass();
        SQLDMO.SQLServer oSQLServer = new SQLDMO.SQLServerClass();
        try
        {
            oSQLServer.LoginSecure = false;
            oSQLServer.Connect("localhost", "sa", "daili");
            oBackup.Action = SQLDMO_BACKUP_TYPE.SQLDMOBackup_Database;
            oBackup.Database = "electricity";
            oBackup.Files = @Server.MapPath("/images/");
            oBackup.BackupSetName = "electricity";
            oBackup.BackupSetDescription = DateTime.Now.ToString();
            oBackup.Initialize = true;
            oBackup.SQLBackup(oSQLServer);
        }
        catch (Exception ex)
        {
            throw ex;
        }
        finally
        {
            oSQLServer.DisConnect();
        }
    }