How to record the time when a checkbox was checked?

Question

I would like to insert the value of NOW() at the moment when a checkbox is changed from unchecked to checked.
Having a programming background but now spreadsheet background, I can't find out how to do this seemingly easy thing.

Answer 1

Hello
It may appears as a
• simple task:
if the checkbox is B2,
in C2 enter =IF(B2=TRUE,NOW(),"")
The time will be displayed when you will check the box
• not so simple
the time displayed in c2 is a "living" one.
It will change each time when the sheet will recalculate. So the value will not be accurate.
Here is a script which will give an accurate result:
Enregistrer le script en tant qu'Application ou Progiciel : checkandtime.app
déplacer l'application créée dans le dossier
<VolumeDeDémarrage>:Users:<votreCompte>:Library:Scripts:Applications:Numbers:
Il vous faudra peut-être créer le dossier Numbers et peut-être même le dossier Applications.
Copier le contenu de la cellule "pseudo case à cocher" dans le presse-papiers.
Sortez de la cellule puis cliquez sur celle-ci
menu Scripts > checkandtime
Si vous travaillez avec Mac OS X 10.4.x, le script collera " " ou "X"
Si vous travaillez avec Mac OS X 10.5.x, le script collera un caractère Unicode coché/pas coché
S'il colle coché il colle également la date/heure dans la cellule adjacente
+++++++
Save the script as an Application or an Application Bundle: checkandtime.app
Move the newly created application into the folder:
<startup Volume>:Users:<yourAccount>:Library:Scripts:Applications:Numbers:
Maybe you would have to create the folder Numbers and even the folder Applications by yourself.
Copy the contents of the "fake checkbox" cell in the clipboard
Exit from the cell then click once in it.
menu Scripts > checkandtime
If you work with MacOS X 10.4.x the script will paste " " or "X"
If you work with MacOS X 10.5.x the script will paste an Unicode character: checked or unchecked
If it paste checked, it paste also the current date_time in the adjacent cell.
Yvan KOENIG le 27 mars 2008
--(SCRIPT checkandtime.app]
on run
set theApp to "Numbers"
try
set txtDatas to the clipboard as Unicode text
on error (*
The clipboard was empty *)
return
end try
log txtDatas
if txtDatas contains tab then return
set txtDatas to my applyMask(txtDatas, theApp)
log txtDatas
set the clipboard to txtDatas
my pasteIn(theApp)
end run
--=============
on pasteIn(the_App)
tell application the_App to activate
tell application "System Events" to tell (first process whose title is the_App) to keystroke "v" using {command down}
end pasteIn
--=============
on applyMask(t, the_App)
try
set v to (system attribute "sys1")
if (v's class is integer) then
set v to (v as string) & "." & (system attribute "sys2") & "." & (system attribute "sys3")
else
error
end if
on error
set v to (system attribute "sysv")
set v to ((v div 4096 * 10 + v mod 4096 div 256) as string) & "." & v mod 256 div 16 & "." & v mod 16
end try
if v < "
set faux to " "
else
set vrai to character id 9745
set faux to character id 9723
end if
if t is vrai then
return faux & tab & " "
else
return vrai & tab & (current date) as text
end if
end applyMask
--=============
--[/SCRIPT]
Yvan KOENIG (from FRANCE jeudi 27 mars 2008 14:32:26)