List length = zero

Hello,

is there a way to get "0" from "List Length" command, if it is empty, instead of "no data was collected"? Eventualy, how do I convert it? I need a number. Thanks a lot.

See picture attached.

Replies to This Discussion

Permalink Reply by Jack Gelardi on July 25, 2013 at 1:38am

picture:

Attachments:

Canvas at 09;37;09.png, 36 KB

Permalink Reply by David Rutten on July 25, 2013 at 2:28am

Do you actually have an empty list or is there no data at all?

David Rutten

david@mcneel.com

Tirol, Austria

Permalink Reply by David Rutten on July 25, 2013 at 2:32am

Attached a VB script that returns zero for both empty lists and non-existent lists.

David Rutten

david@mcneel.com

Tirol, Austria

Attachments:

zero.gh, 6 KB

Permalink Reply by Jack Gelardi on July 25, 2013 at 2:50am

Thanks!

But I didn't explain my problem cleary enough. I need something as "if function": If list length returns no data (is empty), I need zero output. But if it contains data and returns number, I need the number. So I ether want number (4 for instance) or 0.

Thank you!

Permalink Reply by David Rutten on July 25, 2013 at 6:14am

Well, instead of using List Length plus some conditional, just use the VB component instead and you're done right?

David Rutten

david@mcneel.com

Tirol, Austria

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