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Validation in SWT DateTime widget? [message #653314]

Wed, 09 February 2011 10:37

Ben Rowlands

Messages: 3
Registered: February 2011

Junior Member

How can I run some validation logic before the date in an SWT DataTime widget is set?

I'd hope to pop up an error box, add some error decoration or even just ignore these invalid dates. Note, I don't mean dates for illegal day/month combinations -- these can't be set using the widget anyway -- rather, my application only allows users to select and use dates that they've not previously selected.

I tried setting e.doIt = false in a selection listener but this is ignored (I suspect the change has already occurred at this point in time).

Thanks,

Ben

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Re: Validation in SWT DateTime widget? [message #653321 is a reply to message #653314]

Wed, 09 February 2011 11:16

Thomas Schindl

Messages: 6651
Registered: July 2009

Senior Member

You need to reset the value in an Display#async() in your selection
listener.

Tom

Am 09.02.11 11:37, schrieb Ben Rowlands:
> How can I run some validation logic before the date in an SWT DataTime
> widget is set?
> I'd hope to pop up an error box, add some error decoration or even just
> ignore these invalid dates. Note, I don't mean dates for illegal
> day/month combinations -- these can't be set using the widget anyway --
> rather, my application only allows users to select and use dates that
> they've not previously selected.
>
> I tried setting e.doIt = false in a selection listener but this is
> ignored (I suspect the change has already occurred at this point in time).
>
> Thanks,
>
> Ben

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Re: Validation in SWT DateTime widget? [message #653365 is a reply to message #653321]

Wed, 09 February 2011 14:33

Grant Gayed

Messages: 2150
Registered: July 2009

Senior Member

Also, you may wish to CC yourself to the existing request for this:
https://bugs.eclipse.org/bugs/show_bug.cgi?id=202982 .

Grant

"Tom Schindl" <tom.schindl@bestsolution.at> wrote in message
news:iitsn5$btk$1@news.eclipse.org...
> You need to reset the value in an Display#async() in your selection
> listener.
>
> Tom
>
> Am 09.02.11 11:37, schrieb Ben Rowlands:
>> How can I run some validation logic before the date in an SWT DataTime
>> widget is set?
>> I'd hope to pop up an error box, add some error decoration or even just
>> ignore these invalid dates. Note, I don't mean dates for illegal
>> day/month combinations -- these can't be set using the widget anyway --
>> rather, my application only allows users to select and use dates that
>> they've not previously selected.
>>
>> I tried setting e.doIt = false in a selection listener but this is
>> ignored (I suspect the change has already occurred at this point in
>> time).
>>
>> Thanks,
>>
>> Ben
>

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