Re: Dynamic form fields
Thanks, This works perfect for my use case :) Also when I want to trigger it by something else than a checkbox, for example a change in a select, I can probably add a hidden checkbox that I can check with javascript to toggle the FormFragment. Greetings, Nathan Op 14/12/2017 om 14:16 schreef Bob Harner: Nathan, Have you tried the FormFragment component? See https://tapestry.apache.org/5.4/apidocs/org/apache/tapestry5/corelib/components/FormFragment.html On Dec 14, 2017 5:47 AM, "Nathan Quirynen" wrote: Hi, This subject has been spoken about more in the past, but I still have not found a good solution to this and still struggle with this. What is the best practice (Tapestry 5.4+) to add fields to a form "dynamically". In my use case I just want to add some fields to a form when a checkbox (also part of the same form) is selected, or remove/hide them (in a way that they will not be validated and posted) when the checkbox is deselected. How do you guys handle these use cases with forms? Nathan - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Dynamic form fields
That definitely works. You can also just add all the fields you’ll need to the form and then use JavaScript to hide fields that you don’t need at the time. This method is super simple, although you may need to validate some fields on the server side. Or set the values to null when you hide them. -Norman Franke > On Dec 14, 2017, at 8:16 AM, Bob Harner wrote: > > Nathan, > > Have you tried the FormFragment component? > > See > https://tapestry.apache.org/5.4/apidocs/org/apache/tapestry5/corelib/components/FormFragment.html > - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org
Re: Dynamic form fields
On Thu, Dec 14, 2017 at 8:47 AM, Nathan Quirynen < nat...@pensionarchitects.be> wrote: > Hi, > Hi! > This subject has been spoken about more in the past, but I still have not > found a good solution to this and still struggle with this. > > What is the best practice (Tapestry 5.4+) to add fields to a form > "dynamically". In my use case I just want to add some fields to a form when > a checkbox (also part of the same form) is selected, or remove/hide them > (in a way that they will not be validated and posted) when the checkbox is > deselected. > Use BeanEditForm or BeanEditor, their 'model' parameters, which is of type BeanModel, get one instance of it using BeanModelSource and add properties to it using one of the beanModel.add() methods which receive a PropertyConduit. In other words, you're creating synthetic properties, in the sense that they don't map to an existing combination of field/getter/setter in the class on which the BeanModel was created. Your PropertyConduit implementation (actually, you'll probably have more than one) is how you tell Tapestry how to get and set the value for that property. There's one example of doing this for editing a Map in https://stackoverflow.com/questions/21675856/how-to-create-bean-edit-model-for-map-in-tapestry . -- Thiago
Re: Dynamic form fields
Nathan, Have you tried the FormFragment component? See https://tapestry.apache.org/5.4/apidocs/org/apache/tapestry5/corelib/components/FormFragment.html On Dec 14, 2017 5:47 AM, "Nathan Quirynen" wrote: Hi, This subject has been spoken about more in the past, but I still have not found a good solution to this and still struggle with this. What is the best practice (Tapestry 5.4+) to add fields to a form "dynamically". In my use case I just want to add some fields to a form when a checkbox (also part of the same form) is selected, or remove/hide them (in a way that they will not be validated and posted) when the checkbox is deselected. How do you guys handle these use cases with forms? Nathan - To unsubscribe, e-mail: users-unsubscr...@tapestry.apache.org For additional commands, e-mail: users-h...@tapestry.apache.org