Refnum for a Notifier Reference Object - "not valid in this application instance"

[RayR]

Maybe it's normal...

Maybe it's because I wasn't looking at those references as closely before.

Maybe I saw it because it was part of my search for a bug...

Maybe it isn't normal....

Maybe I should post a thread and find out why the reference was "not valid in this application instance"

... maybe... just maybe.... I'll learn more stuff.. Maybe for sure...

Okay, if you read past that junk above, here's what I observed. I know nothing, hence this thread.

I have a wire which is a cluster of a whole bunch of objects. The objects are basically notifiers. The class contains a reference to the particular notifier.

While debugging the code where all the notifier references simply "disappeared" (I know it does not simply disappear, but it did), I noticed something odd. It just caught my eye.

What is strange and why I ask is because the refnum value is correct. 0x1450 0002

I should have taken a screen capture of the code, but then again, there was not much to see. So I will describe it.

Picture 3 VI's. Ignore all the preceding ones and following ones for now. To the left, there is VI-1, middle VI-2, and to the right VI-3.

Below are the outputs of VI-1 to VI-2 to VI-3. The strange thing is the fact that the refnum is "okay" at the output of VI-3. So, valid, not-valid, then valid again.

<< Am I simply observing something normal? >>

[Yair]

Check out this long thread which referred to this issue with probes (which I'm assuming is what you're looking at) - http://forums.ni.com/t5/LabVIEW/What-does-quot-refnum-not-valid-in-this-context-quot-mean/m-p/1048044#M465846

[RayR]

Thanks Yair.

Wow.. What a thread.

I am digesting all that info and will post more details into that thread. It is easier to continue the conversation in the original thread.

Cheers!

RayR

[RayR]

Thanks Yair,