As said in HTML Forms, all the disabled form fileds will be prevented from submitting on Form Submit.
In Angular JS if i used ng-disable for an Input field, then do the field gets really submitted if I do this way
<form>
<input type="text" ng-disabled="true" name="foo">
<button type="submit">submit</button>
</form>
If not why? feels like silly but bit confused on the subject
The library sets the boolean disabled attribute on the element, if ng-disabled has a value which is truthy. I believe the official documentation is quite clear on the subject. The part I referred to:
The HTML specification does not require browsers to preserve the values of boolean attributes such as disabled. (Their presence means true and their absence means false.) If we put an Angular interpolation expression into such an attribute then the binding information would be lost when the browser removes the attribute. The ngDisabled directive solves this problem for the disabled attribute. This complementary directive is not removed by the browser and so provides a permanent reliable place to store the binding information.
your example
<form>
<input type="text" ng-disabled="true" name="foo">
<button type="submit">submit</button>
</form>
You are setting ng-disabled to true so it adds disabled attribute to the form, if you submit the form, As said in HTML Forms, all the disabled form fileds will be prevented from submitting on Form Submit, so
with normal form submit, i.e in html way type="submit", the input values will be only posted through the form if the value inside ng-disabled is set to false or returns false.
in angularjs ng-submit same thing happens, i.e. the form is posted just that a method can be called after the form is submitted.
Related
So I have this form and I really want to use html5 validation. Problem is, there are two things my form needs to do:
Simply save the current state so it can be reloaded later (via jsp/servlets) (WITHOUT VALIDATING)
Actually submit the form (validate it before submitting)
Is there a way to turn off validation for a given button/submit but keep it for the other?
My workaround would be to use an AJAX call for the former and regular submit for the latter, but it kind of messes up the system I have in place.
You can add the "novalidate" attribute when the user clicks on a given button.
<form method="post" action="/foo" novalidate>...</form>
This disables html validation.
Add it again when you want your final submission.
EDIT
Apparently there's a better option, the formnovalidate attribute, that you can add to a specific field (which apparently is exactly what you want):
<form action="demo_form.asp">
E-mail: <input type="email" name="userid"><br>
<input type="submit" value="Submit"><br>
<input type="submit" formnovalidate="formnovalidate" value="Submit without validation">
</form>
Yes, by toggling the novalidate attribute (or the noValidate property on the HTMLFormElement object) with JavaScript.
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/form#attr-novalidate
I have a button that is this <button id="btnSubmit">Submit</button> the problem is, I want the form tags to use this id so that is designed the way I want. And also this code, I have a few questions.
<form action="demo_form.php" method="get">
First name: <input type="text" name="fname"><br>
Last name: <input type="text" name="lname"><br>
<input type="submit" value="Submit">
</form>
what is the action="demo_form.php",input type="submit" do? And does the input type has any other "What do you call this stuff" besides submit?
The action="demo_form.php" sets the action, in this case, "navigate to file demo_form.php and send it the data".
<input type="submit" (...) > creates and element which submits the form e.g. executes the "action".
The method sets the way the data is submitted to the target of the action ("form_demo.php"), in this case get, which allows you to refer to the submitted data as $GET["name"] in PHP.
Possible input types are listed here.
You either give your <input type="submit" (...) > the id="btnSubmit" property or use javascript to submit the form after an event has been triggered.
MOr info on that is available here (i short: document.<get_the_form_element>.submit();).
I suggest you to take a look at this link. It describes all the basic concepts about how using forms. And you can also find a lot of information by Googling it.
The action attribute
The action attribute defines the action to be performed when the form is submitted.
The common way to submit a form to a server, is by using a submit button.
The input attribute
<input type="submit"> defines a button for submitting a form to a form-handler.
The form-handler is typically a server page with a script for processing input data.
If i understand your question correctly, these are my answers.
action
The action attribute describes the page to which the contents of the form are sent to. So if you have a sign up form with an input for an email, the text that is typed will be sent to the action path. It will be sent using the method described in the method attribute. So you can find your values in either the $_POST variable, or the $_GET variable, get is easy for being able to share the url and post is great for private information.
input
The input element is the actual way to input information (who guessed it). You've got an input of the type text for just text input, you've got checkbox for a true or false input and way way more see: w3schools
why don't you use
<input type="submit" value="Submit" id="btnSubmit">
Or if you want to use a button
<button id="btnSubmit">Submit</button>
Then from jquery or js you can submit the form.
And for this question,
what is the action="demo_form.php",input type="submit" do?
You should probably google it out. This is so basic.
Anyway, just a concise explanation:
action is the attribute where you will specify the code that will handle the form data submitted and input type="submit" will display a button in the page, clicking on it will submit the form.
There are a lot of types in input, the most common ones are
text
password
submit
this fiddle works as intended - it displays a warning when the user enters an invalid country code.
This other fiddle, without the form element, doesn't work. It seems the input's pattern attribute needs a form to validate. By the way, I'm doing a complex page without forms and I' d like to validate my input fields with `pattern. Is there a way to do that?
This is because the validation is part of the HTML5 form validation (http://www.w3.org/TR/html5/forms.html#client-side-form-validation). The validations are triggered when the form is submitted en when there are any errors, the submit will be cancelled.
To trigger it manually, use the checkValidity() function on the element:
$('input').blur(function(evt) {
evt.target.checkValidity();
}).bind('invalid', function(event) {
alert('oops');
});
http://jsfiddle.net/y66vH/3/
Validation is done at <form> submission time. If you want to use the browser's natural form validation and its corresponding UI, you need to use a <form> with a corresponding submit input to allow the user to submit the form naturally.
However, validation is triggered before the submission event is triggered. Therefore, you can prevent the default form submission behavior while still using the browser's own validation.
document.querySelector("form").addEventListener("submit", function (e) {
e.preventDefault();
});
http://jsfiddle.net/ExplosionPIlls/2gaw3/1/
The element must be part of the form. If that is not possible, just add form="formID" to your "outside" element.
HTML
<form id="form1" action="demo_form.asp">
<input type="submit" />
</form>
Country code: <input type="text" name="country_code" pattern="[A-Za-z]{3}" form="form1" title="Three letter country code" />
js fiddle: http://jsfiddle.net/y66vH/1/
The key points are:
Yes, validation works with ajax forms.
Don't use an onclick handler. Use onsubmit on a wrapping form and have your button be type="submit" under that form.
In your submit handler, use a pattern like if (!theFormOrInput.checkValidity()) return; right away.
You must call event.preventDefault() after the validity check or else the browser popover won't display. Validation is part of the default action; if you cancel too early you're unintentionally opting out.
I am using the the "GET" method in a form on my website. For some reason it is passing the value of the submit button to the url. Why is this happening? What am I doing wrong?
Form:
<form method="GET" action="searcht1.php">
<input type="text" name="search"/>
<input type="submit" name="submit">
</form>
Url:
searcht1.php?search=colin+pacelli&submit=Submit
It's supposed to happen. If you don't want that, do not define name attribute on the button. You probably want value instead, to show the user what the button is for.
Also, this question has nothing to do with PHP; it is purely about HTML semantics.
The reason is that the name attribute makes the submit button a “successful control” (in HTML 4.01 terminology) when it is used for form submission. This causes the name=value pair from it to be included in the form data.
Note that in your case, this data is name=foo where foo is the browser-dependent default value of the button. It could be submit, or it could be Lähetä kysely, or something exotic. You can, and normally should, use the value attribute to set this value, since it determines the text displayed in the button. It’s usually not desirable to have a submit button on your English-language appear with e.g. some text in Japanese just because a Japanese-language browser is being used.
So as others have written, the solution (if this is a problem) is to remove the name attribute. But since the value attribute should normally be used, you can make two changes simultaneously by just replacing the attribute name name by the name value, though you might also capitalize the word shown:
<input type="submit" value="Submit">
Try to remove name attribute from submit input
remove the name attribute of the button.....
I have read a bit on this, but I can't seem to find anything solid about how different browsers treat things.
A readonly element is just not editable, but gets sent when the according form submits. A disabled element isn't editable and isn't sent on submit. Another difference is that readonly elements can be focused (and getting focused when "tabbing" through a form) while disabled elements can't.
Read more about this in this great article or the definition by w3c. To quote the important part:
Key Differences
The Disabled attribute
Values for disabled form elements are not passed to the processor method. The W3C calls this a successful element.(This works similar to
form check boxes that are not checked.)
Some browsers may override or provide default styling for disabled form elements. (Gray out or emboss text) Internet Explorer
5.5 is particularly nasty about this.
Disabled form elements do not receive focus.
Disabled form elements are skipped in tabbing navigation.
The Read Only Attribute
Not all form elements have a readonly attribute. Most notable, the <SELECT> , <OPTION> , and <BUTTON> elements do not have readonly
attributes (although they both have disabled attributes)
Browsers provide no default overridden visual feedback that the form element is read only. (This can be a problem… see below.)
Form elements with the readonly attribute set will get passed to the form processor.
Read only form elements can receive the focus
Read only form elements are included in tabbed navigation.
No events get triggered when the element is having disabled attribute.
None of the below will get triggered.
$("[disabled]").click( function(){ console.log("clicked") });//No Impact
$("[disabled]").hover( function(){ console.log("hovered") });//No Impact
$("[disabled]").dblclick( function(){ console.log("double clicked") });//No Impact
While readonly will be triggered.
$("[readonly]").click( function(){ console.log("clicked") });//log - clicked
$("[readonly]").hover( function(){ console.log("hovered") });//log - hovered
$("[readonly]").dblclick( function(){ console.log("double clicked") });//log - double clicked
Disabled means that no data from that form element will be submitted when the form is submitted. Read-only means any data from within the element will be submitted, but it cannot be changed by the user.
For example:
<input type="text" name="yourname" value="Bob" readonly="readonly" />
This will submit the value "Bob" for the element "yourname".
<input type="text" name="yourname" value="Bob" disabled="disabled" />
This will submit nothing for the element "yourname".
Same as the other answers (disabled isn't sent to the server, readonly is) but some browsers prevent highlighting of a disabled form, while read-only can still be highlighted (and copied).
http://www.w3schools.com/tags/att_input_disabled.asp
http://www.w3schools.com/tags/att_input_readonly.asp
A read-only field cannot be modified. However, a user can tab to it, highlight it, and copy the text from it.
If the value of a disabled textbox needs to be retained when a form is cleared (reset), disabled = "disabled" has to be used, as read-only textbox will not retain the value
For Example:
HTML
Textbox
<input type="text" id="disabledText" name="randombox" value="demo" disabled="disabled" />
Reset button
<button type="reset" id="clearButton">Clear</button>
In the above example, when Clear button is pressed, disabled text value will be retained in the form. Value will not be retained in the case of input type = "text" readonly="readonly"
The readonly attribute can be set to keep a user from changing the value until some other conditions have been met while the disabled attribute can be set to keep a user from using the element
The difference between disabled and readonly is that read-only controls can still function and are still focusable, anddisabled controls can not receive focus and are not submitted with the form