I'm trying to put some data in a hidden form field for a POST. But the field is showing up on my Web page. There are no styles or style sheet. Here's how the fields are defined. Any ideas?
<form action="GetUserPics.php" method="post">
<input type=”hidden” name=”picIndex” value="WHAT?">
<input type="submit" value="previous">
</form>
You are using non-standard quotation marks for your attributes on that field. HTML is interpreting those quotes as part of the attribute's value, as in:
<input type="”hidden”" name="”picIndex”" value="WHAT?">
Since ”hidden” is not a valid input type, it's reverting to text.
Because you're not using ASCII quotes, you're using some sort of weird slanty quotes that the HTML is trying to use as the type (and thus it will fall back to text). Interestingly, you're not using them to print the value, which incidentally hides your mistake.
<input type=”hidden” name=”picIndex” value="WHAT?">
Those are not regular double quotes. Try
<input type="hidden" name="picIndex" value="WHAT?">
Can you replace your hidden type input with this:
<input type="hidden" name="picIndex" value="WHAT?"/>
Related
So I'm trying to make a form for my assignment, and I am using the pattern attribute in html so only certain characters are required to be typed on the text box. But for some reason, the form is saying using that I'm using an incorrect format even though I made my pattern attribute that way.
Here's an example of the code and a picture of the problem.
<form>
<label for="mnumber">Mobile Number:</label>
<input type="text" required id="mnumber" pattern="[0-9]"><br><br>
<input type="submit" value="submit">
</form>
You did write:
pattern="[0-9]"
You are asking for only one number. You just forget to add '+' to accept more than one number. I guess what you are searching for is this:
pattern="[0-9]+"
pattern="[0-9]"
allows for only a single number character to validate (and be submitted). If you want to allow more than one character, here's your options:
One or more numbers:
pattern="[0-9]+"
Zero or more numbers:
pattern="[0-9]*"
One to three numbers:
pattern="[0-9]{1,3}"
you just need to change type="text" to type="number"
Just trying to make a field that only accepts 8-digit numbers and every browser lets it pass with any number of digits.
<form>
<input type="number" pattern="[0-9]{8}" required>
<input type="submit">
</form>
I feel like I'm missing something really obvious here am not seeing the problem with my pattern.
Codepen: https://codepen.io/mavelo/pen/VVZvoP
<input type="number"> elements do not support use of the pattern attribute for making entered values conform to a specific regex pattern.
Source:
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/input/number#Pattern_validation
I'm currently having an input element for a phone number and trying to use the pattern attribute but it refuses to do so. it says "Validation(HTML5): Pattern is not a valid attribute of element input"! When I change the type to "text" it says that pattern attribute is only valid when title is present!
<input type="number" class="form-control"data-require="" id="Mobile" placeholder="Mobile No" autocomplete="off" pattern="[\+]\d{3}d{9}" required>
UPDATE:
I Added title attribute and it's working now! but my only issue is that when i click submit, it submits the form even though that the format is not matching.
The <input> should be valid without the title attribute (validated on https://validator.nu/):
<!DOCTYPE html>
<html>
<head>
<title>Test</title>
</head>
<body>
<input type="text" class="form-control" data-require="" id="Mobile" placeholder="Mobile No" autocomplete="off" pattern="[\+]\d{3}d{9}" required>
</body>
</html>
Additional changes:
A space is missing before attribute data-require.
The pattern attribute is only allowed on the following types: email, password, search, tel, text, or url.
Your regular expression ([\+]\d{3}d{9}) is also invalid. You can try one of the following rules:
[\+]\d{3}\d{9}
[\+]\d{12}
You are missing the \ before the second d to match only numbers. The second pattern is a minified version of the first pattern.
It's fixed, just added this in my javascript.
/[+]\d{3}d{9}/.test(PhoneNo)
You can add oninvalid attribute to the tag
<input type="text" name="HasAPattern" pattern="\w{3}" title="Enter 3 characters" oninvalid="setCustomValidity('Needs to match patern')" >
The HTMLSelectElement.setCustomValidity() method sets the custom validity message for the selection element to the specified message. Use the empty string to indicate that the element does not have a custom validity error.
You can also use code like event.preventDefault(); inside it to cancel the submit if invalid
Problem
I'm trying to prevent leading whitespace from being used in an input whether through spaces or tabs by using a pattern, but I'm having issues with this regular expression ^(?!\s)([a-zA-Z0-9 _.'"()!?&#]){1,}$, which I think is because I might not be escaping properly because of the quotation marks?
Ultimately, I want to make sure the input takes at least one character, but none of those characters be leading white space at the beginning of the query.
Invalid inputs
_This is a query
__This is a query
Valid inputs
This is a good input
abc
123
a
index.html
<form action="{% url 'master_search' %}" method="GET">
<i class="fa fa-search search-icon-drilldown" aria-hidden="true"></i>
<input type="text" class="nav__search--agency form-control inline" name="q" value="" placeholder="Search by employee name" pattern="^(?!\s)([a-zA-Z0-9 _.'"()!?&#]){1,}$" required>
</form>
Hm. If you want to allow everything that starts with a letter or number,
pattern="^[a-zA-Z1-9].*"
should do the job
You could also negate a range by doing
^[^\s]+.*$
which will match a line with a starting character that is not white space.
This is A pattern , which is uses to input type in html, but for name validation I have been analysise the pattern
pattern="^(?!\s)[a-zA-Z ]{1,}$" and I used the title (title="Request Format:Not valid numeric val & special character. Only Character") for Requested pattern form in my input type html form where type="name"
Here's some code:
<form>
<input type="text" name="Title" pattern="[a-zA-Z0-9`\~\!\#\#\$\%\^\&\*\(\)\-\\\\=\+\{\}\[\]\']{2,40}" required>
<input type="submit">
</form>
I would like to add quotes to the allowed in the regex expression, however \" does not work and " does not work, either...
So I can just replace the quotes with \x22. Now I'll have to figure out which one to use (I can instead disallow instead of allow, or use \x22 in place of the quotes). I can't remember all of the original reasons I chose to specifically allow, so I might stick with replacing it with \x22, since it's so simple and less modifying.