README.md
##<iron-form>
<iron-form> is an HTML <form> element that can validate and submit any custom
elements that implement Polymer.IronFormElementBehavior, as well as any
native HTML elements.
It supports both get and post methods, and uses an iron-ajax element to
submit the form data to the action URL.
Example:
<form is="iron-form" id="form" method="post" action="/form/handler">
<paper-input name="name" label="name"></paper-input>
<input name="address">
...
</form>
By default, a native <button> element will submit this form. However, if you
want to submit it from a custom element's click handler, you need to explicitly
call the form's submit method.
Example:
<paper-button raised onclick="submitForm()">Submit</paper-button>
function submitForm() {
document.getElementById('form').submit();
}
To customize the request sent to the server, you can listen to the iron-form-presubmit
event, and modify the form's<code>iron-ajax</code>
object. However, If you want to not use iron-ajax at all, you can cancel the
event and do your own custom submission:
Example of modifying the request, but still using the build-in form submission:
form.addEventListener('iron-form-presubmit', function() {
this.request.method = 'put';
this.request.params = someCustomParams;
});
Example of bypassing the build-in form submission:
form.addEventListener('iron-form-presubmit', function(event) {
event.preventDefault();
var firebase = new Firebase(form.getAttribute('action'));
firebase.set(form.serialize());
});