List.add Method does not work

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#1

Hi guys,

I try to add a String to a list with the list.add method but the error occurs “Expression does not produce a value”.
I know it could use the add to collection activity but I want to know why it does not work with the simple add-Method. As you can see in the screens there is even a code suggestion with add but it don’t work.
Does Uipath not support that or did I something wrong?

Addlist2
Addlist21165×221 15 KB

AddList
AddList925×507 16.3 KB

Thanks and regards

#2

You need to use the cumbersome Invoke Method activity instead.

image
image735×373 12.3 KB

1 Like
#3

Thank you @ptrobot

So that means, Uipath does not support the direct code way, right?

#4

No, it’s a feature we have requested. It’s on their To Do-list. Vote for this feature here: Better Invoke Method For One-Liners

#5

@Akimbow
a sub (subroutine) is not returning a value (as functions are doing it). That’s why you do see the error. As nothing is returned, there is no value that can be used for the assignment.

Using a sub -> invoke method

#6

Ok I did