test wfopen or wfcreate

[bhaupt]

Eviews 7.2:

Does wfopen provide some sort of error trapping that would allow me to test to see if a workfile exists, and load it, otherwise wfcreate such a workfile?

Currently, when I open a non-existant workfile I get the message:
[path]\[filename].wf1 not found on disk in "[disk name]
No workfile exists - Use NEW or OPEN to create or load a workfile in "PAGESELECT DAILY".

Pageselect Daily
is the first command after the workfile fails to open.

[EViews Gareth]

There's nothing more than the general error trapping in programming.

You could use the @fileexist function to test whether the file exists or not.

[bhaupt]

@fileexist will provide the functionality that I want.

Quick followup:
Ideally if the workfile is already open when I execute my code, I would prefer to *not* re-open the workfile.
is there a workfile command that will identify whether the workfile is already open? I have considered testing the equality of the @wfname property, but that only checks the default (current) workfile.

[EViews Gareth]

You could try wfuse. That selects the workfile if it is currently open, and opens it if it is not currently open. You have to give it the full path and file name though (see documentation...)

[bhaupt]

Perfect. Thank you very much.