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Double Quote in Label Expression

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12-18-2014 07:00 AM
m_neer
by
Frequent Contributor

Hello,

Trying to get my label expression to work here.  The problem is some of my table

records have a double quote in it (" symbol).  I want to rename as such see example below:

(30" PVC Pipe Drain)  and rename it to (30 inch)

I use the following vbScript - but get nowhere:

Function FindLabel ( [NAME] )

If Not IsNull([NAME]) Then

NewStr = Replace([NAME], "30'' PVC Pipe Drain", "30 inch")

  FindLabel = NewStr

End If

End Function

  --- also I tried python and get nowhere:

def FindLabel ( [NAME] 😞

  S = [NAME]

  S = S.replace( '30'' Drain, Vitreous Clay Pipe', '30 in')

  return S

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20 Replies
RichardFairhurst
MVP Honored Contributor

Caught that and fixed it in my post just before I saw your reply.  Retry the code.

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JamesFitzgerald
Frequent Contributor

Okay, You have hooked me. Now, I cannot get it to work. I used your code. Do you post the code in the code block? What do you enter into the "Name=" block? Do you have to create another field to populate?

Thanks

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m_neer
by
Frequent Contributor

No problem Richard please see snapshot below and here is the code that worked for me.

Function FindLabel ( [Name]   ) 

dblQuote = instr( [Name] ,chr(34)) 

if dblQuote > 0 then 

newStr = left( [Name] ,dblQuote - 1) & " inch" 

else 

newStr = [Name] 

end if 

FindLabel = newStr 

End Function

ExpressionLabel_Error.jpg

RichardFairhurst
MVP Honored Contributor

The code has been written to work as an Advanced Label Expression, not as a field calculation.  For a field calculation I would write it like:

Parser:  VB Script

Use Codeblock:  Checked

Pre-Logic Codeblock:

Output = [NAME]
dblQoute = instr(Output, chr(34))
if dblQuote > 0 Then  Output = Left(Output, dblQuote - 1) & " inch"

NAME= Output

TedKowal
Honored Contributor

I edited my previous post to remove quote (really skipping over it ) and shorten the label

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m_neer
by
Frequent Contributor

"Thank You" Ted & Richard. Both your suggestions have worked for me - hope they work for other GIS users. Very much appreciated!!

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RichardFairhurst
MVP Honored Contributor

To make all quotes turn into " inch" your VB Script label code should be:

Function FindLabel ( [NAME] )

  If Not IsNull([NAME]) Then

    NewStr = Replace([NAME], "''"", " inch")

    FindLabel = NewStr

  End If

End Function

This assumes no quote character in your data is a real quote character and always changes to inch.  If that is true, you should not have to deal with the full field value in your features, just the quote character.

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JamesFitzgerald
Frequent Contributor

M.Neer,

Another quick fix is to start an edit session, open up the attribute table, click on the table options  and select the find and replace. Replace the (") with nothing (just leave blank). Save. I am still looking to do this through Python.

James

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JamesFitzgerald
Frequent Contributor

M.Neer,

Sorry, but replace INCH not blank. I going to use your code. Excellent Job!!

James

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TedKowal
Honored Contributor

I am an old vb guy struggling to learn python..... for the challenge I attempted to get a python script to work as well.....

Bear in mind this is probably sloppy python but it works....

def FindLabel ([TestChar]):
  str = [TestChar]
  i = str.find(chr(34))
  if i > 0:
    newStr = str[:i] + " inch"
  else:
     newStr = str
  return newStr