Author Archives: Duncan Butler

  First we need to set the update from within the engine [Test] public void Update() { _Engine.AddTransaction(10.10, "test category", "test description", DateTime.Now); Assert.IsTrue(_Engine.Update()); } public bool Update() { bool transFailed = false; foreach (MoneyTransaction moneyTransaction in _History) { if … Continue reading →

  so I now have an add and update, the delete will follow the same format, I have currently stored the connection string in a constant, but I suppose it can eventually be stored in an application setting. so for … Continue reading →

  The data layer I have thought and done some coding without tests, and have decided that I am going to put the code in a separate class, this will make it easier to refractor, and may be then I … Continue reading →

The data access layer:  We are going to be loading and saving transactions, so we are going to be testing adding and deleting transactions individually, each transaction should know how to add or delete itself, and also know what its … Continue reading →

  We now have a library that supply’s all the required functionality to  add, subtract and display a balance, also display the history of each transaction. we now need to decide how to save this data, I could simply serialize the … Continue reading →

  The history functions, I was going to have two collections one for additions and one for subtractions, but in reality I think we can get away with only one and allow the interface code to decide how to display … Continue reading →

  We now have an object to store each transaction, this will also allow us to display each transaction, so next we have to do the add, and then subtract, these should also update the balance.  Once we have done … Continue reading →