Expression builder problem

Question

Expression builder problem

as_1234

SSCrazy

Points: 2842
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April 9, 2020 at 2:44 pm

#3741788
All,
Can anyone advise the correct way to put this expression together? I've tried a few combinations but each results in an error when I press OK. I don't think it's relevant but it's the "arguments" expression for an execute process task.
Thanks
- This topic was modified 4 years ago by as_1234. Reason: Grammar correction

Viewing 7 posts - 1 through 6 (of 6 total)

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Thom A SSC Guru Points: 99126 More actions · Answer 1

What is SSIS saying it wrong with it? Also, please post the expression as text, rather than an image, so that we can at least copy and paste it.

Thom~

Excuse my typos and sometimes awful grammar. My fingers work faster than my brain does.
Larnu.uk

TangoVictor SSChampion Points: 10969 More actions · Answer 2

I just typed this in and it works fine, what error you getting?

(DT_WSTR,255)("e C:\\Users\\as1981\\Downloads\\stackoverflow\\0302020 StackOverflow\\") + (DT_WSTR,255)( @[User::Filename])

here is the result when i hit Evaluate Expression:

e C:\Users\as1981\Downloads\stackoverflow\0302020 StackOverflow\ThisisMyFilename.txt

as_1234 SSCrazy Points: 2842 More actions · Answer 3

Both: Thanks for your help.

Thom A: Sorry I didn't think of pasting as text. I will do in future.

I've just compared AlphaTangoWhiskey's example against mine and found the issue. It was the missing double backslashes in the path. I hadn't noticed they were missing but also wasn't looking at the content of the string as I thought that wouldn't be evaluated until runtime.

Thanks

This reply was modified 4 years ago by as_1234.

Jeffrey Williams SSC Guru Points: 90250 More actions · Answer 4

Just a quick note - you may need to embed double-quotes into that string for it to work correctly. There is a space in the path and it will probably cause an issue with execute process task and the parameter.

Jeffrey Williams
“We are all faced with a series of great opportunities brilliantly disguised as impossible situations.”

― Charles R. Swindoll

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as_1234 SSCrazy Points: 2842 More actions · Answer 5

Thanks for the advice. You are correct I had to make further corrections. When I have access to the system again I'll post the final expression in case it helps anyone in the future

as_1234 SSCrazy Points: 2842 More actions · Answer 6

In relation to my previous post here is the final expression:

"e \"C:\\Users\\username\\Downloads\\stackoverflow\\032020 StackOverflow\\" + (DT_WSTR,255)( @[User::FileName]) + "\""