[libreoffice-users] Re: Unexpected behavior while writing Calc Functions

Am 16.07.2012 06:11, Andrew Douglas Pitonyak wrote:
> On 07/15/2012 06:52 PM, Andreas Säger wrote:
> > Calc does not know any dates nor times. It's all about doubles and text.
> >
> > --
> > View this message in context:
> > http://nabble.documentfoundation.org/Unexpected-behavior-while-writing-Calc-Functions-tp3995669p3995674.html
> >
> > Sent from the Users mailing list archive at Nabble.com.
> Although that is true, I expected a date returned from a function would
> return as a double, not text. Internal Date functions in Calc appear to
> return as a double and then it is smart enough to display it as a
> date.... or am I mistaken?

Sorry, no magic conversion. The double is displayed as date/time when 
the cell is formatted accordingly. The cell value remains a double.
In the context of number format "General", certain input strings are 
recognized as date/time and number format "General" displays one 
particular number format for the recognized data type. Once you applied 
some number format other than the "General" one, any number will be 
shown in that format.
Nevertheless, we can queryContentCells for c.s.s.sheet.CellFlag.DATETIME 
because the application needs to keep track of those "special doubles" 
because the base date for the entire document may be changed by the user.
> http://www.openoffice.org/api/docs/common/ref/com/sun/star/util/NumberFormatSettings.html#NullDate


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