thanks, Cezary It works now. My mistake is that "acronyms" property was a String and that why it has the value true and the checkbox was checked. I change it to boolean and it works :).
Regards Marwa On Tue, Oct 6, 2020 at 10:05 PM Cezary Biernacki <cezary...@gmail.com> wrote: > Hi, > > Tapestry's t:checkbox parameter uses the "value" parameter to determine if > the checkbox should be rendered as checked or not. the "value" parameter > supposed to be a boolean, but if you provide anything else, Tapestry will > attempt to coerce the provided argument to boolean. There are multiple > built-in Tapestry coercions from various Java types to boolean, some > examples: > > - String - if it is empty or null or equal to "false" (case insensitive) > is coerced false, otherwise true. > - Numbers (int, long, etc.) - non-zero values are true; > - Collections (lists, maps) - non-empty are true; > - Any other generic object, not coerced otherwise - non-null values are > true; > > So, in your case, "acronyms" is something that Tapestry coerces to Boolean > as the "true" value. If you need to make the checkbox unchecked, provide > the "value" parameter that evaluates as "false". > > About coercions you can read here: > https://tapestry.apache.org/parameter-type-coercion.html > https://tapestry.apache.org/type-coercion.html > > Details about default type coercions can be found here: > > https://github.com/apache/tapestry-5/blob/master/commons/src/main/java/org/apache/tapestry5/ioc/internal/BasicTypeCoercions.java > > Cezary > > > On Tue, Oct 6, 2020 at 9:33 PM marwa hussein <marwa.huss...@gmail.com> > wrote: > > > On Tue, Oct 6, 2020 at 5:17 PM Nathan Quirynen < > > nat...@pensionarchitects.be> > > wrote: > > > > > Is it possible that your "acronyms" property has a value of true when > > > rendering ? > > > > > > No it is not. Also I am wondering what could make the "checked" > attribute > > default to be true!! > > Also I cant find in tapestry API how to change the attribute checked > value > > to false!! > > > > > > > > > > Op 6/10/2020 om 14:42 schreef marwa hussein: > > > > Hi all, > > > > > > > > I am trying to populate a grid with some values and add a column > with a > > > > checkbox to select a value.. > > > > > > > > <t:grid t:source="OntologyInfoList" row="OntologyInfo" add="Select"> > > > > > > > > <p:selectcell> > > > > <t:checkbox t:id="select" value="acronyms"/> > > > > > > > > The problem when the grid is populated I found the Checkbox checked > by > > > > default, although I didn't use the "check" attribute (which suppose > to > > be > > > > "false" by default)!! > > > > how can I make solve this and make it unchecked in the begining?? > > > > > > > > Regards, > > > > Marwa > > > > > > > > > > --------------------------------------------------------------------- > > > To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org > > > For additional commands, e-mail: users-h...@tapestry.apache.org > > > > > > > > > > -- > > > > > > > > *Marwa Hussein M. TA @ Information Systems Department Faculty of > Computers > > & Information Assuit University* > > <imanhe...@yahoo.com> > > > -- *Marwa Hussein M. TA @ Information Systems Department Faculty of Computers & Information Assuit University* <imanhe...@yahoo.com>
