Using the Debugger
Visual Studio .NET provides a useful toolbar you can use while debugging but doesn't display it by default. In this section, you'll see both how to load the Debug toolbar and how to get started debugging.
Three Modes of Existence
While creating applications in Visual Studio .NET, you'll find yourself in one of three “modes.” Each mode has a specific function, and knowing which mode you are in is important. The three modes are as follows:
Design mode. In this mode you build your user interface and write your code.
Break mode. In this mode you can single-step through code, view and modify variable values, and inspect memory.
Run mode. In this mode you are, effectively, testing your application within the Visual Studio .NET environment. ...
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