How do I validate this form element

Question

0.00/5 (No votes)

See more:

Currently I have a simple fieldset and I would like to be able to write a function that checks if all the inputs are filled out, and if so collapses into the legend. If one ore more of the input fields are empty the fieldset stays open. I know how to make it collapse into the legend I just need help with the validation function.

HTML

<fieldset>
        <legend><a href="#" onclick="doit2()">Personal details</a></legend>
        <div id="two">
            <div>
                <label>Surname or family name:</label>
                <input type="text" name="personal"/>
            </div>
            <div>
                <label>Given name/names:</label>
                <input type="text" name="personal"/>
            </div>
            <div>
                <label> Date of birth:</label>
                <input type="date" name="personal"/>
            </div>
            <div>
                <label> Male </label>
                <input type="radio" name="gender" value="Male"/>
            </div>
            <div>
                <label> Female </label>
                <input type="radio" name="gender" value="Female"/>
            </div>
            <div>
                <label> N/A </label> 
                <input type="radio" name="gender" value="NA"/>
            </div>
        </div>
    </fieldset>

What I have tried:

JavaScript

function doit2() {
       if(document.getElementById('two').style.display == 'none'){
           document.getElementById('two').style.display = 'block';
       } else {
           document.getElementById('two').style.display = 'none';
       }
   }

Posted 27-May-17 1:28am

Member 13216646

Updated 27-May-17 9:22am

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Anshumas · Answer 1 · 2017-05-27T09:22:00

Hi
In simple way you can write the same in JavaScript. I just adding sample code for input type text you may add in same for other field type as well.

JavaScript

function doit2() {
            var flagEmpty = false;
            $("#two").find("input[type='text']").each(function () {
                if ($(this).val().trim() == "") {
                    flagEmpty= true;
                }
            })
            if (!flagEmpty) {
                if (document.getElementById('two').style.display == 'none') {
                    document.getElementById('two').style.display = 'block';
                } else {
                    document.getElementById('two').style.display = 'none';
                }
            }
        }