Hi All
Im after help and guidance on a Dynamo script I am creating, this is my first ever script, so go easy.
Im essentially trying to use data shapes to pull up a user form to populate sheet information and some project information.
When I populate every area of the formating of data, all is good; however, when only partially populating the form, I get several nulls which errors.
I have tried to list transpose and others, but I don’t understand this enough.
Guidance would be gratefully appreciated.
103 test.dyn (153.6 KB)
Hello…your could try some function apply…
or
Hi
Thanks for the advice. Are you using a special package to get the List.ReplaceNull node?
Also, both my code blocks error when I input as you have them

1 Like
Yes sorry , forgot to mention its from clockwork…in your codeblock just remove 1…its recourse i use a newer version dynamo than you…Here is an example how you can control empty list, empty string and nulls… hope it will help 
replace null empty list.dyn (16.9 KB)
What do you want to do when the user skips an input? I would suggest either replacing the nulls with an empty string or assigning the existing values instead. That way you don’t even have to deal with nulls.