Debugging app designer on error

Using breakpoints in app designer works great, and I can see the workspace in the command line during debugging.

But how can I get the same debugging functionality with an error occurs in my app designer code? I tried

dbstop if error

but the workspace at the command line is only some high level information about the function the app designer code was in at the time of the error, and not the local variables in the function's workspace.

Maybe I've put the dbstop in the wrong place in the app designer code?

[Paul Buckland]

Just to clarify, here are the workspaces I can choose, and also the workspace for tryCallback.

None of the other workspaces in the list give me any of the local variables. And the app designer doesn't give variable information on mouse-over either.

Answer 1

[Vilnis Stumbris]

dbstop if caught error

ME = MException(msgID,msgtext)

http://matlab.izmiran.ru/help/techdoc/ref/dbstop.html

https://www.mathworks.com/help/matlab/ref/mexception.html

im trying to sort out something like this too. these might help

callback for errors

https://www.mathworks.com/help/matlab/matlab_external/errorfcn.html

Answer 2

[Christian Tieber]

Use

dbstop if caught error