/** * @class Ext.field.Hidden * @extend Ext.field.Text * @xtype hiddenfield * * Hidden fields allow you to easily inject additional data into a {@link Ext.form.Panel form} * without displaying additional fields on the screen. This is often useful for sending * dynamic or previously collected data back to the server in the same request as the * normal form submission. For example, here is how we might set up a form to send * back a hidden userId field: ** @example packages=[extangular]* import { Component } from '@angular/core'* declare var Ext: any;** @Component({* selector: 'app-root-1',* styles: [`* `],* template: `* <container #item layout="center">* <formpanel #item shadow="true">* <hiddenfield #item* value="123"* name="hide"* ></hiddenfield>* </formpanel>* </container>* `* })* export class AppComponent {** } * * In the form above we created two fields - a hidden field and a * {@link Ext.field.Checkbox check box field}. Only the check box will be visible, but * both fields will be submitted. Hidden fields cannot be tabbed to - they are removed * from the tab index so when your user taps the next/previous field buttons the hidden * field is skipped over. * * It's easy to read and update the value of a hidden field within a form. Using the * example above, we can get a reference to the hidden field and then set it to a new * value in 2 lines of code: * * var userId = form.down('hiddenfield')[0]; * userId.setValue(1234); */ /** * @cfg {Boolean} [hidden=true] * @hide */