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I would like to add values from multiple fields in a shape file and display the result as a label

This is what I'm doing currently::

if ( [SwineGesBo] + [SwineSowLt] > 0) then 
    output = output & [SwineGesBo] + [SwineSowLt] & "Sows"

Unfortunately the code here only puts the two value together and does not sum them.

How can I do this?

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  • In addition to the below comments, I believe your if statement might give you incorrect results. Try putting the ">0" outside the parentheses.
    – Fezter ♦
    Jan 17, 2013 at 23:07

2 Answers 2

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From the Help button on the Label Expression dialog:

Field values are automatically cast to text strings. Therefore, if you wish to use a numeric value in an arithmetic operation, or when making a comparison, you will need to cast it back to a numeric data type.

In place of 

[SwineGesBo] + [SwineSowLt]

try using 

cint([SwineGesBo]) + cint([SwineSowLt])
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Add and calculate a new field with the values summed, then call on this new field in the label expression.

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  • Ok the concept makes sense to me. Could you give me an example of what this might look like? TIA
    – Seth_ia
    Jan 17, 2013 at 21:00

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