Develop Reference

angular ng-if automaticly sends a form when true

I have a angular js form and a button that, if pressed, shows the login fields (2 inputs for username and password, and 1 submit button) and another button that hides it.
I've written this simple code below that uses the ng-if directive. it is working fine only problem that after the use press on show login, the div is being shown but the form is being submitted automaticly (without the user press on the submit button).
someone knows why this is happening and how to fix it?
thanks
<form name="loginForm" width="70%">
<br>
<button ng-click="NewConversation=true" >show login</button>
<button ng-click="NewConversation=false" >hide login</button>
<br><br>
<div ng-if="NewConversation">
<input autocomplete="off" name="name" ng-model="name" required placeholder="Name">
<br>
<input autocomplete="off" name="room" ng-model="room" required placeholder="Room">
<br><br>
<button ng-click="updateMsg({name: name,room: room})">Start Talking!</button>
</div>
</form>

Every button inside form tag has default behavior - submit, to prevent it add type="button" to every button inside the form tag.
<button type="button" ng-click="NewConversation=true" >show login</button>

This should help
show login
this will prevent it from submitting automatically

prevent button submit form onclick

I have a problem on html button tag
This my html code
<form name="data_kirim" action="confirm_order.php" method="POST">
..... order input field ....
<button class="back_button" onclick="window.location.href='keranjang.php'">Back</button>
<input class="next_button" type="submit" name="submit_data_kirim" value="Next"/>
</form>
How to prevent button to submit this form, because button is using the href to back page,
Can someone help me?

change
type='submit'
to
type='button'

<button class="back_button" onclick="window.location.href='keranjang.php'">Back</button>
<form name="data_kirim" action="confirm_order.php" method="POST">
<input class="next_button" type="submit" name="submit_data_kirim" value="Next"/>
</form>
A quick solution would be to move the back button outside the form since It's not using the form inputs anyway.

you can call a function in javascript when click your button, redirect to your link and return false or use preventDefault() function with jquery

<form onsubmit="return false;">

If you want to just make it link to another page and not submit the form then simply make it a normal button like so :
Next
This will not submit the form though.

Refresh after submit and avoid message

I need to refresh my page after I click on a submit button or do submit by using shortcut keys provided. I also need to avoid the message which i get from the browser.
I am submitting some text so i get a message that entered data might get lost. However it does not.
Below is the code for my submit.
<input accesskey="s" class="button" id="issue-comment-add-submit" name="Add" title="Press Alt+Shift+s to submit this form" value="Add" type="submit">
Please can someone provide a solution using javascript or Jquery
Thanks in advance :)

Submit form to another page (which is different from the page used in ACTION)

I have a form like this:
index.php
<form method="post" action="send.php">
<textarea name="msg" id="msg"></textarea>
<input type="submit" value="Send" />
</form>
So, if I enter something in textarea and clicked on "Send", it is submitted to "send.php" page. But I want to include another button for previewing it. That is, when this button is clicked, the above form is submitted to "preview.php" which will be opened in a new blank window/tab (original page ie. index.php will be there intact). This is to display a preview of the message, that the user is going to send.
I do not know how to do this.

Use Javascript to temporarily change the action and target:
<form method="post" action="send.php" id="idOfForm">
<textarea name="msg" id="msg"></textarea>
<input type="submit" value="Send" />
</form>
<button onclick="doPreview();">Preview</button>
<script type="text/javascript">
function doPreview()
{
form=document.getElementById('idOfForm');
form.target='_blank';
form.action='preview.php';
form.submit();
form.action='send.php';
form.target='';
}
</script>

There is now an attribute for the submit input that handles this:
<input type="submit" formaction=”differentThanNormalAction.php”>

Give your form an ID (form1). The action of the current form can be controlled like this:
function setPreview() {
$('#form1').attr('target','_blank')
$('#form1').attr('action','http://yourpreviewurl.php')
$('#form1').submit()
}
function setSubmit() {
$('#form1').attr('target','')
$('#form1').attr('action','http://yourposturl.php')
$('#form1').submit()
}
Have two buttons, both type="button", one to call setPreview and another to call setSubmit

You can use JavaScript to change the action of the form when the button is clicked and then submit it.
Or simply submit the form via AJAX and then redirect after you get a response.

<form onreturn="someJavascriptFunction()" action="" method="">
creating a js function able to open this preview page

html button v.s. html submit?

I have an input text box and a search submit button, and when user clicks the Search submit button, I want to redirect user to url http://testsearch/results.aspx?k=<value of text box k>, for example, if user put "StackOverflow" into text box and then clicks the search button, I want to redirect user to the following page,
http://testsearch/results.aspx?k=StackOverflow
I find when I use button for Search button, it works (see below source codes),
<input type="text" id="k" name="k" />
<input type="button" id="Go" value="Search" onclick="location.href = 'http://somemachine/Search/results.aspx?k='+document.getElementById('k').value;"/>
but when I use submit for Search button, it does not works (see below source codes), why?
<input type="text" id="k" name="k" />
<input type="submit" id="Go" value="Search" onclick="location.href = 'http://somemachine/Search/results.aspx?k='+document.getElementById('k').value;"/>
thanks in advance,
George

You can even use the submit button this way:
<input type="submit" id="Go" value="Search" onclick="document.location='http://testsearch/results.aspx?k=StackOverflow'; return false;" />
Semantically submit button is used to submit forms not redirect pages. You should use normal button type for this. However as i showed you can use the submit button too but that is not semantic i think.
The below line prevents the form from being submitted.
return false;
That is what you are missing in your code :)
Thanks

<button>-elements and <input type="button"/> don't do anything by default, unless you tell them to do something with Javascript.
<input type="submit"/> will submit the form it is in.
So, if <input type="submit"/> won't work, you got it probably not in the <form/>-element itself.

If that's the only field in your form, simply set the form's method to "get" and it'll work.
<html>
<body>
<form action="http://localhost/mytest" method="get" >
<input type="text" id="k" name="k" />
<input type="submit" id="Go" value="Search" />
</form>
</body>
</html>

<button> means "put a button in the page and do whatever the onclick event says". So if you don't write an onclick handler the page doesn't do nothing.
If you use submit is ok, because you want to redirect to another page.
If you want to use button anyway you can do this way:
<script>
function doTheSearch() {
// do the submit mannually
document.getElementById('myForm').submit();
}
</script>
<form id="myForm" action="results.aspx">
<input type="text" id="k" name="k" />
<input type="button" id="Go" value="Search" onclick="doTheSearch();" />
</form>
Warning: submit button with onclick
If you have a submit button (inside a form, it is, a working submit button) with an onclick event, some browsers will:
1) execute onclick
2) execute submit
your onclick tries to redirect but the submit button wins.
If you want to avoid it you have some options:
a) change submit button to normal button
b) avoid the submit thing (add onsubmit="return false;" to form element)
c) use the submit procedure (form action="..." method="get", no onclick event), the browser will be happy and you can control the submit in the onsubmit event (you can cancel it or not).

make sure you got the input's in a form tag with a GET method:
<form action='http://testsearch/results.aspx' method='GET'>
... inputs
</form>

If I'm understanding correctly, it is not working because it is not in a form tag. If you put it in a form tag with method="get" it should work. The button works because it does not have to be in a form.