Programming Without Default Form Instances
Classes and objects existed in Visual Basic 6.0, but they were not as pervasive as they are in .NET. Objects are everywhere when you are developing in Visual Basic .NET, and that large change has lead to many small changes that can trip you up when you are coming from a VB6 background. One of the more commonly encountered problems for a VB6 developer is the lack of default form instances in .NET, but the term default form instance is confusing enough that I will need to go into more detail about the problem before we look at any solutions.
When you are dealing with classes and objects, it is helpful to think of a class as the blueprint of a house, whereas an object is an instance of a specific class ...
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