从业务逻辑层将事务与实体框架一起使用

请先看看这个：良好的编码实践

所以，这是我的设计。

1. 网站2.业务逻辑层3.DALFacade（我们使用dalfacade来隐藏数据访问，因为我们使用2个不同的存储，sql和db2）4.DAL

在 DAL 中，我们使用工作单元模式和存储库模式。1. 这里最大的问题是：下面的代码对于从业务逻辑创建的事务是否可以正常运行。？

Page:
public partial class NewBonusRequest : System.Web.UI.Page
{
    #region Constructor and Instantiation of Business Logic
        /// <summary>
        /// Property that holds the Business Logic type to call methods
        /// </summary>
        public IRequestBL RequestBL { get; private set; }
        /// <summary>
        /// The default constructor will use the default implementation of the business logic interface
        /// </summary>
        public Request()
            : this(new RequestBL())
        {
        }
        /// <summary>
        /// The constructor accepts a IEcoBonusRequestFacade type
        /// </summary>
        /// <param name="ecoBonusRequestBL">IEcoBonusRequestFacade type</param>
        public NewRequest(IRequestBL RequestBL)
        {
            RequestBL = RequestBL;
        } 
    #endregion

    protected void PageLoad(object sender, EventArgs e)
    {
        if(!Page.IsPostBack)
        {
        }
    }

    #region Control Events
        protected void BtnSubmitRequestClick(object sender, EventArgs e)
        {
            var request= new Request
                                       {
                                           IsOnHold = true
                                           //All other properties go here.
                                       };
            RequestBL.Save(request);
        }

    Business Logic Code.
    public interface IRequestBL
    {
        void Save(Request request);
    }
    /// <summary>
    /// Class in charge of the business logic for EcoBonusRequest
    /// </summary>
    public class RequestBL : IRequestBL
    {
        /// <summary>

        /// <summary>
        /// Saves a new ecobonus request into database and evaluate business rules here
        /// </summary>
        /// <param name="ecoBonusWorkflow">EcoBonusWorkflow entity</param>
        public void Save(Request Request)
        {
            using (var scope = new TransactionScope())
            {
                Request.Save(request);
                // Call to other DALCFacade methods that insert data in different tables
                // OtherObject.Save(otherobject)
                scope.Complete();
            }
        }
    }