Multi-line text entry in Model Builder Parameter

[LindsayRaabe_FPCWA]

Hi Brains Trust. I thought this was a simple thing, but I can't quite figure it out. I want to be able to enter multi-line text into a Models string parameter, but it seems to only accept single line of text. Destination will be a string field in a feature class. 

[DanPatterson]

There is multivalue, but not multiline (same in modelbuilder)

Setting script tool parameters—ArcGIS Pro | Documentation

I suspect you want a "textbox" rather than a "textline" to display the full text of field entry

[LindsayRaabe_FPCWA]

I assume text boxes are not an option?

Could a text file work in place of a text line/box?

[Luke_Pinner]

Ugly workaround - use a "SQL Expression" datatype...?

[LindsayRaabe_FPCWA]

Thanks for the suggestion. I've had a look at that now and don't think that's really a viable option. Would it be possible to load the text in a text file (using the Text File variable) and use a python code to extract the text and calculate field?

[LindsayRaabe_FPCWA]

I feel like I'm getting closer - but still need guidance. I've created a Calculate Value Code Block as per below but have 2 problems (at least, 2 for now):

1. I can't figure out how to replace the written file path on line 4 with the pathway from the variable (which is a text file) i.e. path = (str_path). When I do, I get the below error. 

2. When I run it successfully as per the original script, the output Value is still blank (at least as far as I can tell). 

[Luke_Pinner]

You don't return anything from your function.  Also, readlines() returns a list, not a string.

Here's a simpler version that returns a string containing the text of the file.

Expression:

Result(r"%Text File%")

Code block:

def Result(txtfile):
    return open(txtfile).read()

You could probably even just use the following without a code block

Expression:

open(r"%Text File%").read()

[LindsayRaabe_FPCWA]

Nearly worked! It did indeed calculate the Value as you suggested (just using the Expression instead of the code block) but the calculate field step failed where it encountered the new line. 

[LindsayRaabe_FPCWA]

Trying to fix the issue by turning the multiline text file into a single, long string. Started a new expression as per below, but the Code block keeps removing the \n and just moving the text onto a new line. 

 becomes this:

So I tried this too:

but get this error:

which is the same error I get from just running the field calculator with the original multiline text value. So frustating!

[Luke_Pinner]

Leave your new lines/ carriage returns in and just wrap in triple quotes instead of single quotes in the calculate field expression.  String literals inside triple quotes, """ or ''', can span multiple lines of text.

r"""%Value%"""