Evaluate Attribute Syntax

Hi! This would work:

@Value(_surveytable{@Evaluate(@Value(_list_index)-2)}.autocad_text_string)

I tested with sub function too, but couldn't get it working inside @Evaluate. No errors, but no result. It might be a bug related to sub, since e.g. max is working just fine inside @Evaluate, and it has a similar syntax.

EDIT: Just noticed Takashi had already posted an answer.

@Value(_surveytable{@Evaluate(@Value(_list_index)-2)}.autocad_text_string)

Thanks @takashi you are a champion :)

Thanks @geolassi very much appreciated.

Thanks all, the suggestions above worked but only gave me the first match using List Searcher.

Is there a way to loop through all values in the list?

It seems like you're building the list in the first place - if you just want to keep every feature that is 2 places in front of the feature with the value in PM you could use the adjacent attribute function with a conditional in an attributecreator without building a list

So for each feature, test whether the feature that is 2 after it equals PM. If it does, make a new attribute called PM holding the value in the autocad_text_string.

If there's another reason for using the list and I had to loop through it i'd probably resort to python.

Example:

two_in_front.fmwt

Thanks @egomm, that worked perfectly after tweaking the index values to get the correct values.