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Label appending Expression

AbdulahadMalik3

Hey Folks,

I am working on a mapbook and need some assistance with labeling. For parcels in the subdivision I have Rural address shapefile to show the addresses.

In the shapefile I have two main fields; HOUSE ID (String) and ACCESS NUMBER (String). Some of the House ID's are A, B, C while others have numbers, ACCESS field is all numbers. I want to append HOUSE ID and ACCESS NUMBER.

However, here is what I want to do: if the House ID is Alphabetical then it should append after ACCESS NUMBER, if the HOUSE ID is Numeric then it should go before the ACCESS NUMBER.

What would be the function in vbscript or python I would use?

Any help would be greatly appreciated.

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Accepted answers

RichardFairhurst

Ok here is another question.

Lets say some of the HOUSE ID fields are empty, how would you modify the expression to say that if the HOUSE is empty/NULL use ACCESS NUMBER to label?

Function FindLabel ( [HOUSE], [NUMBER] )   If IsNull( [HOUSE] ) then     Findlabel =  [NUMBER]   Elseif IsNumeric( [HOUSE] ) then     Findlabel =  [HOUSE] & [NUMBER]   Else     FindLabel = [NUMBER] & [HOUSE]   End if End Function

All comments

AbdulahadMalik3

Great.
Thank You! 🙂

Function FindLabel ( [HOUSE], [NUMBER] )
  If IsNull( [HOUSE] ) then
    Findlabel =  [NUMBER]
  Elseif IsNumeric( [HOUSE] ) then
    Findlabel =  [HOUSE] & [NUMBER]
  Else
    FindLabel = [NUMBER] & [HOUSE]
  End if
End Function

RichardFairhurst

Ok here is another question.

Lets say some of the HOUSE ID fields are empty, how would you modify the expression to say that if the HOUSE is empty/NULL use ACCESS NUMBER to label?

Function FindLabel ( [HOUSE], [NUMBER] )   If IsNull( [HOUSE] ) then     Findlabel =  [NUMBER]   Elseif IsNumeric( [HOUSE] ) then     Findlabel =  [HOUSE] & [NUMBER]   Else     FindLabel = [NUMBER] & [HOUSE]   End if End Function

AbdulahadMalik3

Ok here is another question.

Lets say some of the HOUSE ID fields are empty, how would you modify the expression to say that if the HOUSE is empty/NULL use ACCESS NUMBER to label?

AbdulahadMalik3

Works great 🙂
Thank you very much!

You can use this syntax

Function FindLabel ( [HOUSE], [NUMBER] )
  if IsNumeric( [HOUSE] ) then
    Findlabel =  [HOUSE] & [NUMBER]
  else
    FindLabel = [NUMBER] & [HOUSE]
  end if
End Function

kenbuja

You can use this syntax

Function FindLabel ( [HOUSE], [NUMBER] )
  if IsNumeric( [HOUSE] ) then
    Findlabel =  [HOUSE] & [NUMBER]
  else
    FindLabel = [NUMBER] & [HOUSE]
  end if
End Function

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