I want to create a piece of javascript code which doesn't allow the user to submit the form unless at least one event has been checked from the list of checkboxes within a span tag. how would this be done?
Form Name
<form id="bookingForm" name"form1" action="#" method="get">
Span class which echos all the events along with a checkbox at the end of the printed event
<span class='chosen'><input type='checkbox' name='event[]' onclick='checkTerms();' value='{$event['eventID']}' title='{$event['eventPrice']}' /></span>
Submit button code
<input type="submit" name="submit" value="Make booking" id="sub1" disabled=disable />
function checkCheckboxes() {
if (document.querySelector('input[name="event\\[\\]"]:checked') == null) {
document.getElementById('sub1').disabled = 'disabled';
} else {
document.getElementById('sub1').removeAttribute('disabled');
}
}
Change the onclick attribute of the checkboxes to:
onclick="checkCheckboxes(); checkTerms();"
Related
I have multiple images in a HTML document and I want them to render unique values when they are clicked (in some retrievable way). I have tried having them as form elements, like so:
<form id="myform" method="post" action="">
<input type="hidden" name="action" value="submit" />
<div class="flex-item"><input type="image" name="submit" value="alt1" alt="alt1" src="images/<?php echo $data[$counter] ?>"></div>
<div class="flex-item"><input type="image" name="submit" value="alt2" alt="alt2" src="images/<?php echo $data[$counter+1] ?>"></div>
</form>
In this case I would like to access the POST data with PHP, something like:
if (isset($_POST['action'])) {
echo '<br />The ' . $_POST['submit'] . ' button was pressed';
}
But this doesn't work, as it's the image input type, which doesn't seem to be able to send data. I have tried using a button with the image as background, but this way I would have to adapt the size of each image to make it fit in the button (which I want to avoid, as I have many images).
I know I could use an image as a submit button with Javascript, but as I said, information about which image has been clicked also needs to be available somehow. Any ideas about the best solution?
HTML / CSS - Only way.
Set up the CSS to hide the radio buttons:
.hidden {
display: none !important;
}
In your form, use radio buttons to track which image is selected. Put the image inside of a label that is "for" the relevant radio button . Be sure to put whatever info you want in PHP inside the value attribute of the radio buttons:
<form method="post" name="myForm">
<div>
<input type="radio" name="image" value="image1" id="image1" class="hidden">
<label for="image1"><img src="path-to-your-image.jpg"></label>
</div>
<div>
<input type="radio" name="image" value="image2" id="image2" class="hidden">
<label for="image2"><img src="path-to-your-other-image.jpg"></label>
</div>
<div>
<input type="submit" name="save" value="Save Image Selection">
</div>
</form>
If you need the form to submit when they click an image, then add this bit of javascript:
<script>
// No-conflict-mode-safe document ready function (waits until page is loaded to run, which ensures radio buttons are available to bind to)
jQuery(function($) {
// Hide / suppress the submit button
$('input[type="submit"]').closest('div').hide();
// Bind to change event for all radio buttons
$('input[type="radio"]').on('change', function() {
// Submit the form ("this" refers to the radio button)
$(this).closest('form').submit();
});
});
</script>
Then, when you submit this form, in your PHP you'd be able to do this:
$image = $_POST[ 'image' ]; // 'image' is the name of the radio buttons
var_dump( $image );
// Will result in "image1" or "image2", etc - whatever "value" you assigned to the radio buttons
When you use your code, you get the submit param (because of the button's attribute name) in your $_POST object. The value will be the value attribute.
So you can check this like this:
<form id="myform" method="post" action="">
<input type="hidden" name="action" value="submit" />
<div class="flex-item"><input type="image" name="submit" value="alt1" alt="alt1" src="images/img1"></div>
<div class="flex-item"><input type="image" name="submit" value="alt2" alt="alt2" src="images/img2"></div>
</form>
<?php
if (isset($_POST['submit'])) {
if ($_POST['submit'] == 'alt1') {
echo 'alt1 clicked';
// First button clicked
}
else {
echo 'alt2 clicked';
// second button clicked
}
}
?>
I am trying to disable form submit button that is an image after it is clicked to prevent duplicate entries. The form goes to Netsuite which is a ERP/CRM and is often slow so we have been getting users clicking it multiple times causing multiple entries which is why we want to have it disabled after a user clicks on it.
This is the code we are currently using:
<INPUT TYPE="hidden" NAME="payment" VALUE="check" ##check## checked>
<br>
<INPUT type="image" onMouseOver="this.src='http://www.domain.com/pb/tpl/img/emailquote3.jpg'; return false;"
onMouseOut="this.src='http://www.domain.com/pb/tpl/img/emailquote2.jpg'; return false;"
src="http://www.domain.com/pb/tpl/img/emailquote2.jpg" VALUE="order"
NAME="order" id="order" class="button" onclick="this.form.action='https://forms.netsuite.com/app/site/hosting/scriptlet.nl?script=1&deploy=1&compid=xxxxxx&h=xxxxxxxxxxxx';return true;">
I have searched around and read a few suggestion with most saying to add this to onclick area:
this.disabled=true
However adding that code to the onclick does not seem to work. I have tried adding it before and after the netsuite submit portion but does not seem to make a difference.
Does anyone know how I can get this to work?
this.disabled=true will not work for input[type=image].
This has to handle in javascript.
<input type="image" onclick="return submitForm(this)"/>
<scritp>
var submitted = 0;
function submitForm(input){
input.src = "new image path";
if (submitted == 0) {
submitted = 1;
return true;
}
return false
}
</script>
Actually disabled=true doesn't prevent elements of firing the onclick event. You could, instead, a javascript function to perform your submit instructions, and lock it with a variable after the first execution.
Something like this:
var submitEnabled = true;
function Submit() {
if(submitEnabled) {
submitEnabled = false;
this.form.action='https://forms.netsuite.com/app/site/hosting/scriptlet.nl?script=1&deploy=1&compid=xxxxxx&h=xxxxxxxxxxxx';
//Or any submitting code you have
}
}
And then, your image element:
<INPUT type="image" onclick="Submit()" ...
I did a quick test and it looks like if you disable the button onclick the form will never get submitted. I'm not sure if you have have the ability to change the <form> tag, but if you do you could add an onsubmit event that disables the submit button after the form has been submitted:
<form action="https://forms.netsuite.com/app/site/hosting/scriptlet.nl?script=1&deploy=1&compid=xxxxxx&h=xxxxxxxxxxxx" onsubmit="document.getElementById('order').disabled=true;">
<input type="hidden" name="payment" value="check" checked>
<br>
<input type="image" onmouseover="this.src='http://www.domain.com/pb/tpl/img/emailquote3.jpg'; return false;" onmouseout="this.src='http://www.domain.com/pb/tpl/img/emailquote2.jpg'; return false;" src="http://www.domain.com/pb/tpl/img/emailquote2.jpg" value="order"name="order" id="order" class="button">
</form>
If you have the ability to add your own CSS and JavaScript you could clean this up even more.
The rollover image would be better handled by CSS
And simply disabling the submit button doesn't necessarily mean the form can't be submitted. For instance you can submit forms by hitting the enter key on your keyboard. It's better to prevent the submit event itself, rather than disabling a button that may or may not be used.
Example:
<style>
#order {
background: url('http://www.domain.com/pb/tpl/img/emailquote2.jpg') no-repeat;
width: 300px; /* sizing for example only */
height: 100px;
border: none;
}
#order:hover {
background: url('http://www.domain.com/pb/tpl/img/emailquote3.jpg') no-repeat;
}
</style>
<script>
var formSubmitted = false;
function handleSubmit() {
if (!formSubmitted) {
formSubmitted = true;
return false;
}
return false;
}
</script>
<form action="https://forms.netsuite.com/app/site/hosting/scriptlet.nl?script=1&deploy=1&compid=xxxxxx&h=xxxxxxxxxxxx" onsubmit="return handleSubmit();">
<input type="hidden" name="payment" value="check" checked>
<br>
<input type="submit" name="order" id="order" class="button">
</form>
I am trying to get a function to print out whatever the user inputs into the text-box. I am using onClick as an attribute on my submit button. I know I set it up properly because it flickers the answer, but only for a split second. How can I get the input to stay on the page? Here's the code: HTML: Type what you want to post to the website!
HTML:
<div id="main_div">
<section id="leftbox">
<form name="mybox">
Type what you want to post to the website!:
<br />
<input type="textbox" size="15" maxlength="15" name="text" id="text">
<br />
<input type="submit" value="Submit!" onClick="doFirst()">
</form>
</section>
</div>
<div id="insert"></div>
Javascript:
function doFirst(){
text = document.getElementById('text');
insert = document.getElementById('insert');
if(text.value == "")
{
insert.innerHTML = "Please input something!";
return false;
}
else
{
insert.innerHTML = text.value;
}
}
try this:
Using type=button
<input type="button" value="Submit!" onClick="doFirst()">
OR using type=submit
<form name="mybox" onsubmit="doFirst(); return false;">
<input type="submit" value="Submit!">
</form>
Explain:
The action for onclick in submit button DO executed. You keep see the page does not have any changes, because of there are a FORM. And the key point: the form handle the submit action after the JS function doFirst() immediately. Adding the onsubmit in the form with return false to stop default action, means:
<form name="mybox" onsubmit="return false;">
<input type="button" value="Submit!" onClick="doFirst()">
</form>
To simplify the changes, use button instead of submit type, or using onsubmit instead of onclick in form trigger.
onClick="doFirst()"
gets converted into an anonymous function:
function(){ doFirst() }
and whatever that function returns determines if the submit should be completed or aborted, so you should use:
onClick="return doFirst();"
In other words, it's not enough that doFirst return something, whatever doFirst returns should be returned again inside the onClick.
please can someone help. this form validation is not triggering.. It's really frustrating me. I'm a PHP developer rather than JS so i'm struggling a bit with this even though it's clearly something very simple. I'm just trying to validate the form based on the delete box being ticked.
Nothing appears when I click submit. It just submits the form so it must be returning true.
function deleteVal(chk) {
var chk;
// If the checkbox has been set to delete
if (chk.checked == "delete") {
var ok=confirm("You are about to delete the selected images below.\nAre you sure you want to do this?");
if (ok) {
// Submit
return true;
} else {
// Don't submit
return false;
}
}
// Delete box was not ticked so return true and submit form
return true;
}
</script>
<form action="" method="POST" onSubmit="return deleteVal(delete)">
<label>Delete images?</label><input type="checkbox" name="delete" value="delete" />
<input type="submit" name="submit" value="Submit" />
</form>
You need to get the checked value properly like so and see if it is true or false.
var chk = document.getElementById('delete');
// If the checkbox is checked
if (chk.checked == true) {
Then you do not need to pass a variable to the function, however, you do need to give you checkbox an id.
<form action="" method="POST" onSubmit="return deleteVal();">
<input type="checkbox" name="delete" id="delete"/>
<input type="submit" name="submit" value="Submit" />
</form>
Tested code - http://pastebin.com/FdWdeSCN
I want to do something when a form is submitted.
var ispostaction = false;
$("#myform").submit(function () {
ispostaction = true;
});
When the form is submitted the .submit(function ()) is not called.
Is there anything wrong that I'm doing? I have the form id as myform.
I would appreciate any help.
Here's my xhtml page. I'm using JSF 2
<form id="myform" class="someclass" enctype="application/x-www-form-urlencoded"
action="pagename.jsf" method="post">
// custom input text field
// selectOneMenu
// a few more input text fields
// submit button is below
<input id="javax.faces.ViewState" type="hidden" autocomplete="off" value="...." name="javax.faces.ViewState">
</form>
The jquery documentation:
The submit event is sent to an element when the user is attempting to submit
a form. It can only be attached to <form> elements. Forms can be submitted
either by clicking an explicit <input type="submit">, <input type="image">,
or <button type="submit">, or by pressing Enter when certain form elements
have focus.
Calling the submit function will not trigger the submit event. You can "fix" this by adding a hidden button which you click from jquery instead. Most, if not all, browsers unfortunately display the same behavior.
<html>
<script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.0/jquery.min.js"></script>
<body>
<form id="myform" enctype="application/x-www-form-urlencoded"
action="posturl" method="post">
// custom input text field
// selectOneMenu
// a few more input text fields
// submit button is below
<input id="javax.faces.ViewState" type="hidden" autocomplete="off" value="...." name="javax.faces.ViewState">
<input type="text" value="a value" />
<input id="submit" type="submit" value="submit" style="display: none;" />
</form>
<script type="text/javascript">
$(document).ready(function() {
$("#myform").bind('submit', function() {
alert('');
});
$("#submit").click();
});
</script>
</body>
</html>