public UnitOfWork()
 {
     this._context = new DataEntities();
 }
 public UnitOfWork(string connection)
 {
     this._context = new DataEntities(connection);
 }
 public Repository(IUnitOfWork uow)
 {
     context    = uow.Context as DataEntities;
     this.dbSet = context.Set <T>();
 }