How do I limit the number of file upload in html?

Question

I want to limit user to select up to 6 files in the input tag. Currently, my input tag is like this:

<input type="file" name="question_pic" id="id_question_pic" multiple/>

I would like to limit user to select up to 6 files. I can return an error on the server side but I want client side to change it first.

Is there a way to do that?

Thanks.

Answer 1

You can use a jQuery function like this:

$('.fileinput').change(function(){
    if(this.files.length>10)
        alert('Too many files')
});
// Prevent submission if limit is exceeded.
$('form').submit(function(){
    if(this.files.length>10)
        return false;
});

Answer 2

You can use Jquery or Javascript for that like this:

<input type="file" name="question_pic" id="id_question_pic" max-uploads = 6/>

Then in Jquery You can do this like this

Var number_of_uploads;
$("#id_question_pic").change(function() {
    if(number_of_uploads > $(this).attr(max-uploads))
    {
    alert('Your Message');
    }
    else
    {
    number_of_uploads = number_of_uploads + 1;
    }
});

You can also do this on your form submission in which you are uploading the file. But if you are using Ajax upload this is fine I think.