Develop Reference

How to send only POST-data (via Button click) in webView without following link

I load a webpage in a webView. In onPageFinished(..) i run some javascript code, which finally clicks a submit button. So the webView sends Post data and get an answer and loads a new page. That works fine, but i dont need the new page, its just unnecessary network load. I only need to submit the data.
So is it possible to send only the submit without loading the new page? I know that i can send post data with HTTPConnection, but i dont know the header consistence exactly, so i cant set the params. Is there any possibility with JS/Webview to abort?
Edit: I cant override onPageStarted() in my WebViewClient and perform a view.stopLoading(), because the new URL is still the same. But the site appearance is quite different. So i have to stop loading before
HTML of the submit button:
<input type="submit" name="savechanges" class="btn btn-primary" value="Speichern">
and three aditional lines above
<input type="hidden" name="uid" value="390">
<input type="hidden" name="option" value="com_jevents">
<input type="hidden" name="task" value="dash.listprojects">
which meaning i dont know (site is made by Joomla)

You can simply create a "virtual form" and submit it, like:
var $form = $("");
... on click:
$form.submit();
Hope this helps
Ops its removing my html from inside $form, inside the jQuery selector there should be a form like "form method='post' action='{someurl}'" with angle braces opening and closing properly

jQuery form not sending data

I am trying to make it so when a file is submitted, a form gets submitted. Currently the form is submitting (the page refreshes), however the form data isn't being sent.
Javascript:
$(function () {
$("#moreHomepageImages").change(function () {
//I tried all of the following, all don't work
$("#imageHomepageForm").submit();
//$("#imageHomepageForm")[0].submit();
//document.getElementById("imageHomepageForm").submit();
});
)};
Html:
<form id="imageHomepageForm" name="imageHomepageForm" enctype="multipart/form-data" action="add" method="post">
<input type="hidden" name="object" value="homepage">
<input type="hidden" name="object_id" value="0">
<label>Add More Images</label>
<input id="moreHomepageImages" type="file" name="images[]" multiple="multiple"/>
</form>
On the add page, I have
print_r($_POST);
print_r($_GET);
print_r($_FILES);
and they print 3 empty arrays. I can't figure out why the form data isn't being sent along with the request? When I add a submit button into the form and click it, the data is sent as it is supposed to,
If it matters, the form is inside a jQuery Tab (http://jqueryui.com/tabs/)
EDIT: The action attribute is not the issue since it works if I use a normal input button and click it, I am using codeigniter so I do not need .php

The issue had nothing to do with jQuery or my code, for some reason the MAX_FILE_UPLOAD in my local php config wasn't reading properly and the images I tried uploaded where > 2MB (the default) breaking the request payload...
As to why submitting the form via clicking a submit button works and submitting over jQuery didn't is beyond me...

what happens on form submits in Coldfusion?

I'm struggling a little to understand the server-side of things using Coldfusion8 and thus far doing client-side stuff only.
Say I have a basic Coldfusion page layout like this:
<script type="text/javascript">
function foo() { docoument.myForm.submit(); }
</script>
<cfif isdefined("sendMyForm")>
... running coldfusion...
... displaying something...
</cfelse>
<form action="nextPage.html" method="post" name="myForm">
<input type="text" name="formContains" />
<input type="hidden" name="sendMyForm" value="yup" />
<input type="button" name="sender" value="send" OnClick="foo() />
</form>
</cfif>
Question:
What actually happens server-side when I submit the form? Is the page getting "re-loaded" and the cfif causes coldfusion to run and display results? Just looking for some basic info so I understand what's happening.
Thanks for hints!

Think of CF and most web servers/systems as accepting input (url/get, form/post, cookie, etc) and returning output (html, json, text, etc). That cycle generally repeats. Someone types in a web address in a browser, request goes to server, page returned with form. User hits submit, request goes to server, page returned with results. User clicks link, request goes to server...and on and on.
You need to have the form action submit back to itself due to the way the if statements are organized. If in form.cfm file then action should be form.cfm. Unless you setup specific mappings in the webserver to have CF handle html files then the file will need to be .cfm
You mention leaving the action attribute out all together submits the form back to the same page but I don't believe this works in every browser.
It is also more common/safer to have form method="post", then check for structkeyexists(form, "fieldname")

Ok. Not the latest links, but valuable information.
http://www.tek-tips.com/viewthread.cfm?qid=523839l
http://cookbooks.adobe.com/post_Email_contact_form_in_ColdFusion-16882.html
I was trying to understand how form submits work in Coldfusion. If the page structure is:
<cf "inputName" = "someValue">
... run the from logic
</cfif>
<cfoutput>
<form>
<input name="inputName" />
... more form
</form>
</cfoutput>
So when I submit the form without action, it gets submitted to the page it's on and therefore the first CF-part can run....

Ajax login forms working with browser password remember features

I have an ajax based login form for my site and have noticed that browsers are not recognising it as a login form and are not remembering passwords for it to ease the user's login.
When the submit button is pressed the values and sent to serverside to check and a response is sent back. If the check passes the the session is set and the page performs a javascript redirect into the members area. The html is very simple and could be the cause of the problem.
HTML:
<input type='text' class='email'>
<input type='password' class='password'>
<a class='submitBtn'>SUBMIT</a>
Thanks guys!

I think I'll do it in another way.
Using a form to submit to a hidden iframe , so the window will act like ajax post(do not refresh the window) and the password remember feature will works
like
<form method="post" id="" action="checkDetail.php" target="myIframe">
<input type='text' class='email'>
<input type='password' class='password'>
<input type="submit" name="" value="" id="Submit"/>
</form>
<iframe name="myIframe" id="myIframe"></iframe>
in this way you have to change a little bit of your response code to notice iframe parent the submit result.
update
it will done automatically by browser. If a form specify 'target' attribute , and there is a iframe has a name attribute that exactly the same as the target attribute of the form, the form action will submit to the iframe.
so when your request is success , your response will appear in the iframe content. Try code like this in the response.
<?php
//php checks database here
?>
<script>
parent.formSuccess({
//your response infomation
});
</script>
and define a formSuccess method in the outer page to handle the submit callback

Found answer on stack : How can I get browser to prompt to save password?
My Version:
<form id='loginForm' target="passwordIframe" method='POST' action="blank.php">
<input name='email' type='text' st='Email'>
<input name='pass' type='password' st='Password'>
<button type='submit'>LOGIN</button>
</form>
<iframe id="passwordIframe" name="passwordIframe" style='display:none'></iframe>
I can confirm that this triggers the password remember features for Chrome (other browsers not yet tested). It is important that the action attribute points to a blank.php. I chose a blank php page and echoed out the $_POST array just to make sure that the values were being submitted via the form.
I will now implement this with my old code that simply uses javascript to pull the values out of the field and checks them via an ajax call. I wonder if I can do away with the submit button all together and just use javascript to submit the form?

Thank you alert upon form submission

I have a very basic form at http://www.happyholidaylites.com/contact.html and it is working great. When you submit the form, the user is brought to the index.html with no message that the form has been sent. I am looking to initiate an alert that says, "your form has been submitted" with an x button. My code looks like this:
<form method="post" id="myForm" action="dynaform.php">
<input type='hidden' name='rec_mailto' value='JBIRD1111#gmail.com'>
<input type='hidden' name='rec_subject' value='New Contact Form'>
<input type='hidden' name='rec_thanks' value='index.html'>
so on and so forth.....
The last line is what is telling the form what to do after the submit button is pressed, but I dont want it to point the browser to the index, rather I want a javascript popup with a success message. Any ideas?

Why not a simple onSubmit?
<form method="post" id="myForm" action="dynaform.php" onSubmit="alert('Thank you for your feedback.');" >

To be honest you are better re-directing to another page in order to avoid the user re-submitting the page on a refresh. Have a look at Post/Redirect/Get Pattern.
Popups can be extremely annoying on websites. You should create a page called "thank-you.html" that you can re-direct the user to on successful submission which has access to the site navigation options or even just do a re-direct back to the form page after a few seconds.

Instead of redirecting to index.html, redirect to thanks.html; your users will thank you because everybody hates popups!

Sounds like your PHP script handles the form submission by processing the input and redirecting the browser to the value in the rec_thanks field.
You can add something like onsubmit="YourJavaScriptFunction()" to the form tag to add client-side behavior prior to actually submitting the form. Within that function you can perform validation, use alert('Thank You!'), etc..