Error trying to change the value property of a cell with decimals

Question

This is a script question.
I’m using a system defaulting to Spanish, so the decimal delimiter is the comma.
During a script I need to change the property value of a cell multiplying it by -1. As an example, I want to change 1,25 into -1,25.
This is how try to do it:
tell application "Numbers" to tell document 1 to tell sheet 1 to tell table 1
set selection range to first cell
set mi_cell to (value of first cell of selection range) * -1
set value of first cell of selection range to mi_cell
end tell
The expected result is wrong provided that the original value of the cell has decimal value. Otherwise is correct.
See examples of what happen after running this piece of the script:
1,25 becomes -125,00 instead of -1,25
6,00 becomes -6,00 (in this case is correct)
Does anybody know how to solve this problem?
Thanks in advance.
Ratz

Answer 1

This was described here in several scripts.
Before setting the value of a cell to a number or a date, the value must be coerced to a string.
It's the only way available to take care of localization features.
Your script must be
tell application "Numbers" to tell document 1 to tell sheet 1 to tell table 1
set selection range to first cell
set mi_cell to (value of first cell of selection range) * -1
set value of first cell of selection range to mi_cell as text
end tell
or better
tell application "Numbers" to tell document 1 to tell sheet 1 to tell table 1
set mi_cell to (value of first cell) * -1
set value of first cell to mi_cell as text
end tell
CAUTION : don't code
tell application "Numbers" to tell document 1 to tell sheet 1 to tell table 1
set mi_cell to -(value of first cell)
set value of first cell to mi_cell as text
end tell
which is supposed to do the same but would return the opposite of *_the integer value_* of the cell.
Yvan KOENIG (VALLAURIS, France) dimanche 13 février 2011 16:06:39