How to create a button that call a method with ajax _without_ submit?

[Marco Sulla]

I have a form, and I want to add a button that call a backing method. At the first I used a commandButton, but when I introduced the validators, it does not work anymore, since commandButton is a submit button and a failed validation makes it not working.

How can I create a button that call a backing bean AND it's NOT a submit button?

I tried:

Code: Select all

<p:button value="add">
    <p:ajax event="click" listener="#{bean.add()}" update="@([id$=add])" />
</p:button>

An non-ajax request was fired, that was done without the parameter id in the URL. Since the page does not work without that parameter, I got an error.

[Melloware]

Switch back to your commandButton the way you had it an add either immediate="true" which skips all validators and bean binding or add process="@none" to tell it not to process any of the fields.

[Marco Sulla]

immediate="true" was enough! It does not work with process="@none"

Thank you a lot, you saved my day!

[Melloware]

No prob!