When designing applications, it is important to know when to use an abstract class and when to use an interface. Although abstract classes and interfaces seem similar in some ways, there are key ...

Consider the keywords that decorate class declarations in both languages. Table 1 lists the valid modifier keywords that you can include in a C# "class" statement, or in the matching Visual Basic ...

Creating a new form in C# is fairly simple, thanks to the Form class. But what about referencing an existing one? Step through this sample code and see how it's done. Much of the time in the real ...