Nested Flatten and Unflatten

[SercoSteveB]

What is String Value Out following execution of the VI?

a) Steve

b) steve

c) RTTarget

d) <undefined>

NOTE:  <undefined> is a string that cannot be defined rather than "<undefined>"

[crossrulz]

A

[boz27606]

A

I would like to see a "what to avoid" in Labview where the strings or clusters could get irreversibly transformed or concatenated.

[littlett]

A

I just passed CLAD today. I did it two years ago but it expired this year.

I want to thank this forum, especially Steve for all the questions and also Crossrulz for all the answers.

I have a question though: what's my lisence number for this CLAD? I remember last time, I got a lisence number on the paper that printed out at the end of the exam. This time, I got a registration number and a validation number.

Are any of those the lisence number? (That's for my linkedIn profile.)

Thanks,

[Hirren]

A

[SercoSteveB]

Hi littlett.  Nice one, congratulations.  If you get a spare 5 minutes please post your exam experiences here.

I just dug out my CLAD Certificate (dated 22-Aug-2005, wow I'm old),  it has a 10-digit Validation Number on it but no Licence Number.

[MrStevenUND]

A

I have my (expired) CLD cert hanging in front of me.  I have a 10-digit serial number and that's it.

On that same note, I just registered for my first CLD-R exam for Monday.  Wish me luck!

[SercoSteveB]

Good luck MrStevenUND, am I correct in thinking the CLD-R is a multiple choice examination?

[SercoSteveB]

Answer: A.  Nice one all.

We use this nested flattening approach all the time when we have multiple senders talking to multiple but specific receivers through the same communications mechanism, it gives us common code in the data transfer (the Transfer Packet) and means that only each sender and receiver pair need to know the structure of their particular Data Packet.  

[crossrulz]

The more common way to do this is to convert the data into Variants.  But you need to be careful with Variants because I have had some mechanisms (which ones I can't quite remember right now) will drop the Variant Attributes.

I also prefer flattening to a string.  Easier to concatinate data when sending and the Unflatten can be a serial process.

[MrStevenUND]

I passed the CLD-R!  Yes, it is a 40-question multiple choice just like the CLAD, but with more specifics on the internals of LabVIEW (as you could expect).  The study guides available from NI are a must.

[SercoSteveB]

Hi MrStevenUND, nice one, congratulations