Microsoft Visual Basic 2013 Step by Step

Chapter 13. Trapping errors by using structured error handling

After completing this chapter, you will be able to

• Processing errors by using the Try…Catch statement

• Setting the trap: the Try…Catch code block

• The Exception object

• Using nested Try…Catch blocks

• Comparing error handlers with defensive programming techniques

• The Exit Try statement

Run-time errors and other program defects are a fact of life for software developers. As a Visual Basic programmer, you’ve undoubtedly had your share of error messages and unexpected program behaviors as you have planned and written your software. In this chapter, you’ll focus on how to handle run-time errors, also referred to as exceptions, which occur as a result of normal operating conditions—for example, errors ...