Debugging an application
Sometimes an application does not behave the way you think
it will. Perhaps a variable is not being assigned the value you
expect, or a script does not perform as desired. In these situations,
you can examine your application by running it in debug mode.
When you run the application in debug mode, PowerBuilder stops
execution before it executes a line containing a breakpoint (stop).
You can then step through the application and examine its state.
Debugging components and .NET applications
Before you can debug a server component or .NET application,
you must deploy it. For more information about debugging server
components, see Application Techniques. For
information about debugging .NET applications and components, see Deploying
Applications and Components to .NET.
To debug an application:
-
Open the debugger.
-
Set breakpoints at places in the application where
you have a problem. -
Run the application in debug mode.
-
When execution is suspended at a breakpoint, look
at the values of variables, examine the properties of objects in
memory and the call stack, or change the values of variables. -
Step through the code line by line.
-
As needed, add or modify breakpoints as you run
the application. -
When you uncover a problem, fix your code and
run it in the debugger again.
Debugging distributed and .NET applications
Before you can debug a PowerBuilder component deployed to
an application server or an application or component deployed to
the .NET Framework, you must deploy it. For more information, see
the chapter on building EAServer components
in Application Techniques and the section on
debugging .NET applications in Deploying Applications
and Components to .NET.