Using IfExistsSessionValue necessary?

[Koen Tjoa]

Hi All,

When checking a SessionValue for a certain condition it can be that the SessionValue isn’t set yet. Does this matter? Or is it necessary to check if a SessionValue exists before doing a p_web.GSV when you are not sure it is already set?

Cheers,
Koen

[charl99]

If you check a session value that does not exist you will simply get nothing back, so I would say it does not matter.

It's the same as p_web.gsv('AndISpelledItWrong') which makes you look for a problem that does not really exist 

Cheers
Charl

[Koen Tjoa]

Hi Charl,

Thanks, so no problem. 

Cheers,
Koen

[Bruce]

correct, no problem.

[Koen Tjoa]

Well unfortunate it was a problem. I was doing this also in the p_web.Translate method and when the SessionVariable doesn’t exist, I got a problem with setting <!—Net:s:MySessionVariable -->, it wasn't set.

No clue why this happened 
But first checking if the SessionVariable exists and only then get the SessionVariable solved it.