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marcwolf Senior Member Joined: 08/06/2009 Location: AustraliaPosts: 119
Posted: 06:26pm 21 Jan 2013
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Hi Folks
If I try and read in from a file number that has not been used I get an error. Is there a way I can check this situation and not crash out of the program.
DaveEdited by marcwolf 2013-01-23Coding Coding Coding..
Keep those keyboards coding..
RAW CODE!!!!!
shoebuckle Senior Member Joined: 21/01/2012 Location: AustraliaPosts: 189
Posted: 08:28pm 21 Jan 2013
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I gather that the non-existence of the file is a valid condition, so how about testing that the file exists before trying to read from it and set a flag to say that it exists or doesn't. This will work because OPTION ERROR CONTINUE will trap a non-existent file.
OPTION ERROR CONTINUE
File1=1
OPEN "MyDataFile" FOR INPUT AS #1
IF MM.ERRNO = 6 THEN File1 = 0
OPTION ERROR ABORT
...
...
If File1 = 1 THEN INPUT #1, a,b,c
Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
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