I want to build a form using react-final-form that has multiple submit buttons, where each submit button sets a different value in the form. Essentially, I want to create a form that looks something like this in rendered HTML:
<form>
Are you over 18 years old?
<button type="submit">Yes</button>
<button type="submit">No</button>
</form>
However, I can't figure out how to make react-final-form treat these different submit buttons as setting values in the form. I tried combining component state, <input type="hidden">, and onClick handlers, like this:
class FormWithMultipleSubmits extends React.Component {
state = {
value: undefined
};
setValue = value => this.setState({ value: value });
render() {
return (
<Form>
Are you over 18 years old?
<Field
name="adult"
component="input"
type="hidden"
value={this.state.value}
/>
<button type="submit" onClick={() => this.setValue(true)}>
Yes
</button>
<button type="submit" onClick={() => this.setValue(false)}>
No
</button>
</Form>
);
}
}
However, that doesn't seem to work -- probably because the value property on the <Field> component is only used for checkboxes and radio buttons.
Can someone give me a nudge in the right direction, for how to solve this properly?
Here's a Sandbox that shows how.
Related
I have a form with id theForm which has the following div with a submit button inside:
<div id="placeOrder"
style="text-align: right; width: 100%; background-color: white;">
<button type="submit"
class='input_submit'
style="margin-right: 15px;"
onClick="placeOrder()">Place Order
</button>
</div>
When clicked, the function placeOrder() is called. The function changes the innerHTML of the above div to be "processing ..." (so the submit button is now gone).
The above code works, but now the problem is that I can't get the form to submit! I've tried putting this in the placeOrder() function:
document.theForm.submit();
But that doesn't work.
How can I get the form to submit?
Set the name attribute of your form to "theForm" and your code will work.
You can use...
document.getElementById('theForm').submit();
...but don't replace the innerHTML. You could hide the form and then insert a processing... span which will appear in its place.
var form = document.getElementById('theForm');
form.style.display = 'none';
var processing = document.createElement('span');
processing.appendChild(document.createTextNode('processing ...'));
form.parentNode.insertBefore(processing, form);
It works perfectly in my case.
document.getElementById("form1").submit();
Also, you can use it in a function as below:
function formSubmit()
{
document.getElementById("form1").submit();
}
document.forms["name of your form"].submit();
or
document.getElementById("form id").submit();
You can try any of this...this will definitely work...
I will leave the way I do to submit the form without using the name tag inside the form:
HTML
<button type="submit" onClick="placeOrder(this.form)">Place Order</button>
JavaScript
function placeOrder(form){
form.submit();
}
You can use the below code to submit the form using JavaScript:
document.getElementById('FormID').submit();
<html>
<body>
<p>Enter some text in the fields below, and then press the "Submit form" button to submit the form.</p>
<form id="myForm" action="/action_page.php">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br><br>
<input type="button" onclick="myFunction()" value="Submit form">
</form>
<script>
function myFunction() {
document.getElementById("myForm").submit();
}
</script>
</body>
</html>
HTML
<!-- change id attribute to name -->
<form method="post" action="yourUrl" name="theForm">
<button onclick="placeOrder()">Place Order</button>
</form>
JavaScript
function placeOrder () {
document.theForm.submit()
}
If your form does not have any id, but it has a class name like theForm, you can use the below statement to submit it:
document.getElementsByClassName("theForm")[0].submit();
I have came up with an easy resolve using a simple form hidden on my website with the same information the users logged in with. Example: If you want a user to be logged in on this form, you can add something like this to the follow form below.
<input type="checkbox" name="autologin" id="autologin" />
As far I know I am the first to hide a form and submit it via clicking a link. There is the link submitting a hidden form with the information. It is not 100% safe if you don't like auto login methods on your website with passwords sitting on a hidden form password text area...
Okay, so here is the work. Let’s say $siteid is the account and $sitepw is password.
First make the form in your PHP script. If you don’t like HTML in it, use minimal data and then echo in the value in a hidden form. I just use a PHP value and echo in anywhere I want pref next to the form button as you can't see it.
PHP form to print
$hidden_forum = '
<form id="alt_forum_login" action="./forum/ucp.php?mode=login" method="post" style="display:none;">
<input type="text" name="username" id="username" value="'.strtolower($siteid).'" title="Username" />
<input type="password" name="password" id="password" value="'.$sitepw.'" title="Password" />
</form>';
PHP and link to submit form
<?php print $hidden_forum; ?>
<pre>Forum</pre>
Sounds simple, but I couldn't find a hello-world example of this, despite the richness of the doc. The closest I could find was in https://react-hook-form.com/advanced-usage, in the Working with virtualized lists section, but that relies on another module react-window, which introduces further complexity.
I want to allow the admin user to create-update-delete a list of products, with various properties.
My current code in JSX looks like this, I'd like to take advantage of error handling etc from react-hook-form:
<ol >
{products.map((row, index) => (
<li
className={index === selectedProductIndex ? "selected" : ""}
key={index}
id={index} onClick={handleSelectProduct}>
{row.name}
</li>
))}
</ol>
<form onSubmit={handleSaveProduct}>
<p>Product name: </p>
<input name="productName" type="text" value={selectedProductName}
onChange={handleEdit_name} />
(... more properties to edit here)
</form>
The handlers save the values of selectedProductName, selectedProductIndex, etc in useState, in a database via axios, etc.
I'm handling the values of each field individually in the useState, which I'm aware is laborious and heavy-handed.
Well the answer was quite simple, although it took me a while to figure it out.
In most of the examples, the onChange or onClick handlers don't use the event object, but nothing prevents you from adding it in. Then there's the setValue function to set the other control's value. Here's the code of a hello-world example. It offers one dropdown and one input field, the input field updates to match the selected value of the dropdown.
import React from "react";
import {useForm} from "react-hook-form";
function Test() {
const {register, handleSubmit, errors, setValue} = useForm();
const mySubmit = data => {
console.log(data);
}
return (
<div>
<form onSubmit={handleSubmit(mySubmit)} className="reacthookform">
<select name="dropdown" ref={register}
onChange={(ev) => setValue("productName", ev.target.value)}>
{["AAA", "BBB", "CCC"].map(value => (
<option key={value} value={value}>
{value}
</option>
))}
</select>
<input name="productName" defaultValue="AAA" ref={register({required: true})} className="big"/>
{errors.productName && <p className="errorMessage">This field is required</p>}
<input type="submit" value="Save product"/>
</form>
</div>
);
}
export default Test;
I'm using iron-form and I'm trying to POST a file to a (currently local) server. I'm having two buttons, one to actually send the file and one to cancel. I'm having a problem cancelling. Here's the form:
<form is="iron-form" action="http://localhost:7733/receivedoc" id="restForm" method="post" >
<table class="starter-inputs">
<tr><td>
<px-file-upload
id="uploadComponentId"
message="Drag and drop files here, or click the button below."
multiple=false
accept=".xls,.xlsx">
</px-file-upload>
</td></tr>
</table>
<button class="btn btn--large btn--icon" id="saveDataSetButton">
<i class="fa-briefcase">Generate Pacing File</i>
</button>
<button class="btn btn--large btn--icon" id="cancelDataSetButton">
<i class="fa-briefcase">Cancel</i>
</button>
<div class="output"></div>
</form>
The cancelDataSetButton is being handled as:
this.$.cancelDataSetButton.addEventListener('click', function() {
console.log('restForm.cancelDataSetButton click')
restForm.reset();
restForm.querySelector('.output').innerHTML = 'Operation cancelled.';
});
HOWEVER, since By default, a native element (or input type="submit") will submit this form., the POST gets fired regardless. How can I prevent the Cancel button from POSTing?
it's a good question.
Couple things I would like to highlight here...
First of all, let's refresh some basics regarding HTML spec:
1) <button> without attribute type will act as type=submit as default attribute, that's why both of your buttons will submit the form.
2) <button> is supporting type="reset" which will reset all your fields into initial value(s) (e.g. clear them) and will not submit a form, so there are no JS handler code is needed for that at all.
In total, I would recommend to do some adjustments in your HTML code, related to buttons block:
<button type="submit" class="btn btn--large btn--icon" id="saveDataSetButton">
<i class="fa-briefcase">Generate Pacing File</i>
</button>
<button type="reset" class="btn btn--large btn--icon" id="cancelDataSetButton">
<i class="fa-briefcase">Cancel</i>
</button>
Please make note, that for cancelDataSetButton no JS code is needed (to clear the field), and you could delete whole event listener:
this.$.cancelDataSetButton.addEventListener('click', function() {
and so one.
Some references to catch up:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/button
I have a grid within a form-tag. Each row in the grid has two buttons, wich of one is of type submit. I thought that only the submit button would fire of the form submission. But all buttons actually post the form.
Why is that? What's the reason to have the type="submit" tag if it's not taken into account?
And how could I solve this? I need multiple buttons in some of my grids.
#using (Html.BeginForm("Action", "Controller"))
{
Html.RenderPartial("_TestGrid");
}
And the buttons in this grid:
grid.Column(format: #<text><button>Do something</button></text>),
grid.Column(format: #<text><button type="submit" value="1">Do something else</button></text>
Use <input/> insted of <button>
grid.Column(format: #<text><input type="button" value="Somthing"/></text>),
grid.Column(format: #<text><<input type="submit" value="Save"/></text>)
I have two submit buttons which call the same action method. How can I tell which of these buttons was clicked in the formcollection of the action method (without setting the value property of the buttons)?
HTML code for buttons:
<input type="submit" name="button" />
<input type="submit" name="button" />
Action method as:
public ActionResult submitted(FormCollection form)
{
}
i know how to do if we have a value property, but I just want to try like this without value property. How can this be done?
thanks,
michaeld
The best thing to do, is intercept the click action to set a hidden form variable before the form is submitted, e.g.:
<script language="text/javascript">
$("form input[submit]").click(function() {
$("#buttonSelected").val("some unique value here");
});
</script>
Where you might have a hidden input:
<input type="hidden" id="buttonSelected" name="buttonSelected" />
That way, you can then check the specific "buttonSelected" form value to figure out which button was pressed.