topic Re: Right Click Case Statement suggests replacing with a Stacked Sequence !!!! in BreakPoint

Right Click Case Statement suggests replacing with a Stacked Sequence !!!!

Ray.R — Mon, 23 Jun 2008 01:22:15 GMT

I must admit that I don't usually right click a Case Structure often with the intention of changing it to something else.

A recent post made me look at the Case Structure to suggest how to change it into a "Disable DIagram Structure", so I figured maybe right-clicking it would offer that choice. ...

To my horror, the only replace choice is the most horrible of all structures!~!~!~! the Stacked Sequence!~! 😠

Maybe I should suggest to change that in the product suggestion thread.

Did other notice that before? Yikes! 😮

RayR

Message Edited by JoeLabView on 06-22-2008 09:22 PM

Re: Right Click Case Statement suggests replacing with a Stacked Sequence !!!!

altenbach — Mon, 23 Jun 2008 03:59:30 GMT

I agree there is little logical resemblance between a case structure and a stacked sequence, so I don't quite see the usefulness of this option. I think it is very old, though, so it might have been retained for legacy reasons. Of course there is also the reverse, converting a stacked sequence to a case structure. I've never tried it but I wonder how it would handle sequence locals. 😉

I rather would prefer to be able to convert between case structures and event structures, something we cannot do. 😉

Re: Right Click Case Statement suggests replacing with a Stacked Sequence !!!!

TCPlomp — Mon, 23 Jun 2008 07:06:37 GMT

I can see a use case, if you have a for-loop with the iteration index linked to the case selector. Such a structure can easily be replaced by a stacked case structure.

Just because it's a bad programming technique it shouldn't be made impossible.

Ton

Re: Right Click Case Statement suggests replacing with a Stacked Sequence !!!!

altenbach — Mon, 23 Jun 2008 07:33:03 GMT

TonP wrote:
Such a structure can easily be replaced by a stacked case structure.

Really???

A case structure has typically multiple code alternatives wired to the same output tunnels. This is logically incompatible with any kind of sequence and you'll get a lot of broken wires (I just tried it myself). So "easy" is probably not the right word. 😄

Re: Right Click Case Statement suggests replacing with a Stacked Sequence !!!!

Ray.R — Mon, 23 Jun 2008 11:54:43 GMT

I agree with Altenbach which is why I was so surprised.

Even if a For Loop was used to index a Case Structure, any of the exit tunnels would have a value for each of the Cases. So how does the Stacked Structure stacj up to that? 😉 <pun intended>

Let's assume for a minute the the magic of Labview does convert the Case Structure somehow correctly. Personally, I try to educate others to stay away from those darn structures... But it's offered as a selection when right clicking a Case Structure.. So who are they going to believe? A Stacked Sequence of 3 or 4 frames (max) might be okay if coded properly. But that is not what I constantly see. I keep seeing nested S-S 3 to 4 layers deep with as many as 100 frames!!

- sigh - 😞