Dynamically change value of form in JS

Dynamically change value of form in JS

By : user2955537
Date : November 22 2020, 10:40 AM
wish help you to fix your issue Here is an example jsFiddle. I have two fields.. opp3 and opp4. The user can modify the text in opp4 but I want the text in opp3 to dynamically change when a user changes the text in opp4. , You can use an event listener on the opp4 input to achieve this.
code :
var opp3 = document.getElementById('opp3')
opp3.value = "Text <VALUE FROM OPP4> More Text";
var opp4 = document.getElementById('opp4')
opp4.value = "Field Text Here";

opp4.addEventListener('input', function () {
    opp3.value = this.value;
<input id="opp3" maxlength="120" name="opp3" size="40" tabindex="1" type="text" style="cursor: auto; background-attachment: scroll; background-position: 100% 50%; background-repeat: no-repeat;" readonly>
       <input autocomplete="off" id="opp4" maxlength="255" name="opp4" size="40" tabindex="2" type="text">

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Dynamically change form submit button depending on value in form?

Dynamically change form submit button depending on value in form?

By : Francois Maguet
Date : March 29 2020, 07:55 AM
wish helps you This should be easy, but after browsing several libraries (jquery preferred!) and even plain old javascript, I'm drawing a blank. , Let's assume your submit button is a button element.
code :
$('table').delegate('button', 'click', function(e) {

  var formData = {}

  $(this).closest('tr').find('input').each(function() {
    formData[this.name] = this.value;

  //Add in your code to ajax it off...

  e.preventDefault(); //since buttons/submits behave differently in each browser.

JSF: Dynamically change form

JSF: Dynamically change form

By : user2953910
Date : March 29 2020, 07:55 AM
I wish this helpful for you Ajax is a convenient way to do this and JSF 2.0 comes with ajax bundled.
Here is an example:
code :
<h:selectOneRadio value="#{a7.myCheckbox.state}">
      <f:selectItem itemLabel="#{bundle.yes}" itemValue="1"/>
      <f:selectItem itemLabel="#{bundle.no}" itemValue="0"/>
      <f:ajax render="uawGroup"/>

<h:panelGroup id="uawGroup" layout="block">
   <h:outputText value="#{bundle.wichmed}"
        rendered="#{a7.myCheckbox.state == 1}"/>
   <h:inputText value="#{}" id="myInput"
        rendered="#{a7.myCheckbox.state == 1}"/> 
Dynamically change Form Action when form submitting

Dynamically change Form Action when form submitting

By : Amira Barakat
Date : March 29 2020, 07:55 AM
may help you . I think, if you don't want the input fields to show up in the URL, you can remove them from the form before posting.
code :
var objForm = document.search;
if (objForm.vehicle.checked)
<input type="radio" name="vehicle" value="all" />
<input type="radio" name="vehicle" value="first"/> 
<input type="radio" name="vehicle" value="second" selected /> 
<input type='checkbox' name='vehicle[]' value='first' />
<input type='checkbox' name='vehicle[]' value='second' checked />
Dynamically fill form fields according to value change of a dropdown before submitting form

Dynamically fill form fields according to value change of a dropdown before submitting form

By : gchs2012
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , The "standard" way of doing this would be via ajax (just send a JSON request to your users#show action, and it should return the user data you request -- I'll write in a second).
code :
class Order < ActiveRecord::Base
   belongs_to :customer #-> requires "customer_id" in "orders" table

class Customer < ActiveRecord::Base
   has_many :orders
class OrdersController < ApplicationController
   def new
      @customers = Customer.all
      @order = Order.new

   def create
      @order = Order.new order_params


   def order_params
      params.require(:order).permit(:customer_id, :etc, :etc)

<%= form_for @order do |f| %>
   <%= f.collection_select :customer_id, @customers, :id, :name %>
   <%= f.submit %>
<% end %>
class CustomersController < ApplicationController
   respond_to :json, :html, only: :show

   def show
      @customer = Customer.find params[:id]
      respond_with @customer

$(document).on("change", "select#customer_id", function(e){
      url: "customers",
      dataType: "json",
      data: { id: $(this).val() },
      success: function(data){
         // Output returned data in form
Dynamically change html Login form to Registration form

Dynamically change html Login form to Registration form

By : user2103928
Date : March 29 2020, 07:55 AM
To fix this issue I have a login form that takes input for user credentials. At the bottom I have a link to a Register user form. It takes me to a whole new page to register a user. However is there a way with JQuery AJAX to change the login form inputs to take registration inputs instead and send to the respective correct processing php files? , You can use the method of hiding one of the forms.
code :
  const isLoginVisible = $("#login_form").is(':not(:hidden)');
  if(isLoginVisible) {
    $("#switchForm > p").html("Already member? Login now!");
  } else {
    $("#switchForm > p").html("Not yet a member? Register now!");
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="backgroundLogin">
   <form id="login_form" name="login" method="post" action="./Login.php">
         <p id="title">
            Connect-a-Cutie Login
         <p id="email">
            <label> Email:</label>
            <input type="text" name="email" placeholder="Type your email...">
         <p id="password">
            <input type="text" name="password" placeholder="Type your password...">
         <button href="./LoginPage.php" type="submit">Submit!</button>
   <form id="register_form" action="RegistrationPage.php" method="POST" style="display: none;">
      Name: <input type="text" name="name" placeholder="Enter your name..."/><br/>
      Email: <input type="text" name="email" placeholder="Enter your email..."/><br/>
      Password: <input type="text" name="password" placeholder="Enter your password..."/> (make sure no one is looking...)<br/>
      Addess: <input type="text" name="address" placeholder="Enter your address..."/><br/>
      Do you want to be an admin? <input type="text" name="isAdmin" placeholder="TRUE or FALSE"/><br/><br/>
      <button type="submit">Submit</button>
   <a id="switchForm" href="#">
  <p>Not yet a member? Register now!</p></a>
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