@polymer/iron-form

<iron-form>

`` is a wrapper around the HTML <form> element, that can validate and submit both custom and native HTML elements.

It has two modes: if allow-redirect is true, then after the form submission you will be redirected to the server response. Otherwise, if it is false, it will use an iron-ajax element to submit the form contents to the server.

See: Documentation, Demo.

Usage

Installation

npm install --save @polymer/iron-form

In an html file

  
    
  
  
    
      
        <input value="Batman" type="text">
        <input checked="" name="donuts" type="checkbox"> I like donuts<br>
        
      
    </form>
  

By default, a native <button> element (or input type="submit") will submit this form. However, if you want to submit it from a custom element's click handler, you need to explicitly call the iron-form's submit method:

  Submit

  function submitForm() {
    document.getElementById('iron-form').submit();
  }

In a Polymer 3 element

import {PolymerElement, html} from '@polymer/polymer';
import '@polymer/iron-form/iron-form.js';
import '@polymer/paper-checkbox/paper-checkbox.js';

class SampleElement extends PolymerElement {
  static get template() {
    return html`
    
      <form action="/form/handler" method="get">
        <input value="Batman" type="text">
        <input checked="" name="donuts" type="checkbox"> I like donuts<br>
        
      </form>
    
    `;
  }
}
customElements.define('sample-element', SampleElement);

Contributing

If you want to send a PR to this element, here are the instructions for running the tests and demo locally:

Installation

git clone https://github.com/PolymerElements/iron-form
cd iron-form
npm install
npm install -g polymer-cli

Running the demo locally

polymer serve --npm
open https://127.0.0.1:/demo/

Running the tests

polymer test --npm
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