Try OpenEdge Now
skip to main content
Error Handling
Introduction to Condition Handling : How to use this manual : ABL users interested in structured error handling
 

ABL users interested in structured error handling

You can skip several chapters if you are comfortable with the following topics:
*Block properties including default error handling
*Using the ON ERROR phrase
*Using the RETURN ERROR statement
*Using the NO-ERROR option
*Using the ERROR-STATUS system handle
*ABL error messages
After reading this chapter and skimming ABL Block Essentials you can then skip to Using Structured Error Handling
If your interest in structured error handling includes developing a hierarchy of classes to represent your custom application error types, then first read OpenEdge Development: Object-oriented Programming.