February 2008
Intermediate to advanced
1247 pages
31h 55m
English
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Chapter 7. Debugging
The Visual Basic Code Editor described in Chapter 6, "Visual Basic Code Editor," provides tools that make writing Visual Basic applications relatively easy. Features such as error indicators, tooltips, and IntelliSense help you write code that obeys the rules of Visual Basic syntax.
No code editor or any other tool can guarantee that the code you write actually does what you want it to do. Debugging is the process of modifying the code to make it run and produce correct results.
Testing tools such as NUnit (
www.nunit.org) can do a lot to ensure that your code runs correctly, but they only work if the code you write does the right things. If you need a billing system but write an inventory application, no tool will save you.
Depending on the application's complexity, debugging can be extremely difficult. Although Visual Studio cannot do your debugging for you, it does include features that make debugging easier. It allows you to stop execution while the program is running so you can examine and modify variables, explore data structures, and step through the code to follow its execution path.
This chapter explains Visual Basic's most important debugging tools. It describes the tools available in the Debug menu and the other IDE windows that are most useful for debugging.
The Debug Menu
The Debug menu contains commands that help you debug a program. These commands help you run the program in the debugger, move through the code, set and clear breakpoints, and generally ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.