Debugging an Application

Use the PowerScript Debugger to identify and resolve logic and semantic errors that occur when you run your application.

1. Insert breakpoints where you suspect problems might occur.
   
2. Run the application in debug mode, either stopping at breakpoints, or stepping through one line at a time.
   
3. Each time execution stops, use debugger functions to examine the context of the application, such as coding logic, the values of variables, or the call stack. You can add or modify breakpoints while your application runs, and test the effects of different variable values on execution.
4. To fix problems that you discover during debugging, stop the debugger and edit your application in design mode.
   

• PowerBuilder .NET Debugger Changes
  The debugger is an implementation of the Visual Studio debugger. If you are familiar with either the PowerBuilder Classic or the Visual Studio debugger, you will notice both similarities and differences in the debugger.
• Debugging and the Development Cycle
  The PowerBuilder debugger lets you detect and diagnose problems while you run your application
• Setting a Breakpoint
  Set breakpoints where you want to test or examine your application's state.
• Running in Debug Mode
  Run your application in debug mode to test its execution.
• Examining an Application
  Examine your application using debugger functions.
• Debug Windows
  The debugger uses several windows, each showing a different kind of information about the current state of your application or the debugging session
• Fixing Your Code
  Return to design mode to fix errors that you find during debugging.
• The DEBUG Preprocessor Directive
  The DEBUG directive marks blocks of code that are to be processed during the first compilation pass.
• Using the DEBUG Preprocessor Directive
  Use the DEBUG preprocessor directive to embed code in your application that is processed only by the debugger.
• Breaking into the Debugger when an Exception is Thrown
  Control how the debugger responds to exceptions.