How to reset input fields in a form after validation fail when updating it with new values
Solution 1:
Exactly for this purpose, <p:resetInput> component was introduced (based on OmniFaces ResetInputAjaxActionListener).
Nest it inside the command button, with a target set to the same client ID as update attribute of command button:
<p:commandButton ... update=":form">
<p:resetInput target=":form" />
</p:commandButton>
See also:
- How can I populate a text field using PrimeFaces AJAX after validation errors occur?
- Reset input fields without executing validation