Thank you for your link, Geoff. Duy.
On Thu, Aug 7, 2014 at 9:46 AM, Geoff Callender < geoff.callender.jumpst...@gmail.com> wrote: > This guide is handy: > > http://tapestry.apache.org/property-expressions.html > > Geoff > > On 6 Aug 2014, at 8:37 pm, Chung Khanh Duy <chungkhanhduy1...@gmail.com> > wrote: > > > Thanks so much Peter ! > > > > Duy. > > > > > > On Wed, Aug 6, 2014 at 5:30 PM, <peter.sk...@ooom.at> wrote: > > > >> the expression does not throw an exception, wenn getStudent() returns > null. > >> best regards, Peter > >> > >>> Hi all, > >>> > >>> Does anyone see the similar binding as below: > >>> > >>> Java code: > >>> Student student; > >>> > >>> Tml file: > >>> > >>> <input value={student?.name} /> > >>> > >>> I don't know why they add "?" in data binding ? > >>> > >>> Thanks, > >>> Duy. > >>> > >> > >> > >> > >> --------------------------------------------------------------------- > >> To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > >> For additional commands, e-mail: users-h...@tapestry.apache.org > >> > >> > > > > > > -- > > Chung Khánh Duy > > Project Support Manager > > Formos > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > For additional commands, e-mail: users-h...@tapestry.apache.org > > -- Chung Khánh Duy Project Support Manager Formos