When doing some class design in Visual Basic, I faced a serious situation. If anyone has some feedbacks on it, it will be appreciated.

Using the Class Builder, I create an object. I then added some properties and methods to that object. Then, it was time to sub class that object in 2 levels and have those 2 levels be sub classed as well. Each of those levels have additional properties and methods. So far, so good, each of those levels see the parents properties and methods.

Now, we need to refine the higher level. So, I added a property. I went back to each level and found that the newly created property at the higher level is not shown. I also have to add a method to the higher level.

Is this a bug in Visual Basic? I can't afford to cut and paste each newly properties and methods from the higher level to each of those 4 levels each time something changes in the higher level.