JavaScript Validation To Check For The Validity Of The Uploaded File

Feb 18, 2005

Is there a way by which I can validate in javascript whether the file I'm trying to upload is an existant one(i.e., one which is present in my local folder).

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Check How Many Days Have Elapsed Since A File Has Been Uploaded

Nov 21, 2010

I set up the following code to check how many days have elapsed since a file has been uploaded:

[Code]...

alert("Days since file was uploaded="+diff); My problem is that modified.getTime() doesn't work. Apparently the result of Oxml.getResponseHeader('Last-Modified') is a string, such as Sun, 21 Nov 2010 21:17:49 GMT. I tried and tried - but couldn't get to make a proper date out of this.

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JQuery :: Validation For Dynamic Field To Check The File Extension?

Aug 25, 2011

I am using jquery.validate.js for my validation. I need to validate some dynamic input fields. By using class now I am able to validate that. Here my problem is to validate for the file extension.

For static files I use as
file: {
required:true,
accept: "png|jpg",
},

How to write the accept validation for dynamically generated input fields. Below is my input field where the ID and name will change for every input field.

<input type="file" id="tval_1" name="tval_1" class="required accept" />

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Form Validation Check - Error When Validating My Html File

May 30, 2010

I'm using the following javascript code to validate a form:

My HTML code is as follow:

The fact that my using xhtml strict I'm having an error when validating my html file. Can't use name attribute in form.

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Size Of Tmp Uploaded File

Feb 1, 2010

I'm trying to make some kind of progress bar using AJAX and PHP.

I want to check the size of tmp file (before it moves to the destination dictionary) during it's being uploaded.

Is that possible to check the file size of tmp file that is being created when someone click on upload form button, before it's fully uploaded.

I noticed that you can do it only after the file is already uploaded so only after isset($_FILES['name_of_file']) will give the truth.

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Checking To See If A File Is Uploaded?

May 18, 2011

So I'm trying to create a custom file uploader which will display the name of the file selected, but since I can't seem to figure out how to do this I've settled for checking to see if a file has been selected, but I'm still having trouble with it.Here's what I have...

<style>
#upload {
display: inline-block;
text-align: center;

[code]....

However the value doesn't change after the file has been selected. Could someone tell me a means of modifying this so that it will properly display once the file has been uploaded? Do I need to have some sort of constant refresh on the Javascript to check to see if the value has been changed?

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Error In Javascript In Form To Check File Extension

May 1, 2007

actually there's no error in the code only that is only made to check for one input field and my form has 3 image upload fields, the original is:

<form enctype="multipart/form-data" action="action.php" method="post" onSubmit="if(!this.img1.value.match(/.jpg$/i)){alert('Must be JPG file');return false};return val(this)">
<input type="file" name="img1">
</form>

This works great but what modifications should have to be able to check multiple file input fields?

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File Type Of Uploaded Files?

Aug 28, 2005

how do i check the file type of a file being uploaded using jsp?
i need to user to be able to upload images only..

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Get Date File Was Uploaded To Server?

Nov 4, 2010

I would like to create a script that behaves differently according to the date it was uploaded to the webserver. Meaning - if I send the script to my friends and each one uploads it to his server on a different date - each one will get a different behavior.

Something like:uploaddate=getuploaddate();
if uploaddate between Jan 1...Jan15, 2010
do this1;
elseif uploaddate between Jan 16...Jan31, 2010

[Code]...

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JQuery :: Uploadify Change File Name As It Is Being Uploaded?

Oct 9, 2011

I am using uploadify (a jQuery plugin) to upload files as I am adding clients to my DB. I would like to attach files to clients. The issue #1 is that the client is a new client so it has not been added to the DB just yet. I have overcome this by getting the next Client_ID in the DB.

NOW the real issue is that all files that are uploaded should be prepended with this ID...something like: (29) ---i would like the parenthesis as an added open and close of the client_ID----I have searched on stackoverflow and uploadify.com but can't make heads or tails on how to do this.

I NEED TO DO IT VIA JS, because of the fact that I am using the PHP elsewhere in my application and I don't want to change it, if at all possible.

[Code]...

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Delete An Uploaded File When A PHP Page Is Navigated Away From?

Jun 18, 2009

I would like to be able to delete an uploaded image file whenever a PHP page is navigated away from, either by the use of buttons on the page or the browser arrows.

I want to do this to stop a directory being filled with 'leftover' files.

I think that using an onblur function with the <body> tag would enable me to do this, the problem is that the filename is a PHP variable.

I have searched for an AJAX function that would enable me to do this, but haven't been able to find one.

I have a PHP script for uploading and cropping an image file, this file is selected by a form that calls the cropping script.

In the form there are buttons to Crop, Load File and Exit.

The Crop button starts the cropping process and finishes by deleting the original file.

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Word Counter For An Uploaded File In A Form?

Jun 27, 2010

I am a total newbie, but am trying to get my feet wet by adding some JavaScripts into/onto my website that I am creating. I am trying to have people "upload a file" which will then take them to my order page where it will tell them how many words their "file" has, then in the background divide the number of words by 350 for the page count then multiply by my price per page, then display their cost of their job? I seen one like that on another website [URL].. but cannot figure out how they did it. I'd like to be able to put this at the top of my order page where after they see the cost, they would fill in their own info (which I know how to do) and then submit the whole thing along with payment.

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Remove Uploaded File And Give Limit To Upload Files?

Feb 5, 2009

I have used this script for multiple upload using one file control. In this i have give limit for upto 3 times user can upload. also user can remove which is uploaded. But main problem is when user remove last uploaded file than its ok but when user remove first uploaded file and then add new file that time user can upload more than 3 files? Whats the problem I can`t found.

My script is

<script language="jscript" type="text/javascript">
function getCount() {
var cnt = 0;
for ( var i = 0; i < upload_number; i++ ) {

[Code]....

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JQuery :: Check File Extension When User Sets It In The File Input?

Apr 20, 2010

is there a way to assign an event to a file input so that when a user selects a file to upload the event is triggered and i can check out the file extension? The reason why is simple, i want to perform different actions depending on the type of the file.

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How To Check The Input File Object File Size On Client Side?

Dec 20, 2004

I have a form with three Input File form objects in which the user can add image files. But I am worried about the problems these controls can lead, because to check the file size the server needs to receive the entire file, so serious problems may happen, for example:

1. Malicious user trying to collapse the website sending big files.

2. Users that have not seen the warning “Maximum size: 100 KB&#65533; for each image, and try to send three image files consisting in 1,5 MB each one. These users will have a bad experience waiting one hour or more to upload the images, and after that receive an alert saying “Oooops! Your image files are too big.&#65533; And also, web server will waste an important amount of resources. The same case with 100 users at the same time can be a nightmare!


I have been searching a way to check the file size on client side without having to force user to install anything, but I think that there isn’ t nothing to do with javascript. But I found an interesting PHP article that explains a way to do it with this server side language. The technique consists in:

“A hidden field (measured in bytes) that precede the file input field, and its value is the maximum filesize accepted. This is an advisory to the browser, PHP also checks it. This form element should always be used as it saves users the trouble of waiting for a big file being transferred only to find that it was too big and the transfer failed. Code:

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Checking The Validity Of The Email?

May 29, 2011

1. I have a javascript with which I am checking the validity of the email provided:

function checkEmail($email)
{
if(eregi("^[a-zA-Z0-9_]+@[a-zA-Z0-9-]+.[a-zA-Z0-9-.]+$]", $email)) [code]...

2. Later I have another javascript which check the input field and changes the color if condition not met.

function validateForm (){

var value1 = document.getElementById('field1');

if(value1.value == "Fill in the Name") {value1.style.color = '#ff0000';} red letters IF NOT CHANGED

3. I want to include the above mentioned email function into this function as well.For example to do something like the following

if(value1.value == "" || checkEmail($email) != TRUE) {value1.style.color = '#ff0000';} red letters

Can I use information from another validation script (first script) or I need to include it inside the ValidateForm script (second script) as well?

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Creatring A Function To Test Validity

Dec 9, 2006

I am creating a simon says game, the game is based on 4 images (each has an opposite) when the game begins one of the image randomly flashes, the flash is between itself and its opposite (day and night). the user is then to mimic that flash by clicking on that image. If he clicks in that image then i want the move to be correct or 'true' if he clicks on another image i want the move to be incorrect 'false'. if false he will be redirected to an alert box thats says game over, if true then 2 of the images then flash as opposed to only one, again randomly. I am unsure how to test if it is correct or incorrect and then if correct get 2 of the images to flash randomly and so on. Can anyone help? please? here is what i have so far:

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Calendar Selection - Comparing Two Dates For Validity

Sep 14, 2011

I have a pair of dates in a form that are made up of 3 text fields per date. The day and month fields are 2 digit, the year is 4 digit.

startday
startmonth
startyear
endday
endmonth
endyear

I can't easily change this for a number of reasons. I know the values themselves will be valid (they're generated by a calendar selection script) but I want to check the date created by the end variables is not before the start date. Any script to build a date from the 3 fields for each, and return false if the end date is earlier than the start date?

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Regular Expression To Test The Validity Of An Input Date?

Jan 6, 2011

I have the following regular expression to test the validity of an input date:

([0-9][0-9]|[0-9])[s/-]([0-9][0-9]|[0-9])[s/-]([0-9][0-9][0-9][0-9]|[0-9][0-9])

It should allow 1 or two digits for the day of the month, then a separating character (" ", "/" or "-"), then 1 or two digits for the month, then 2 or 4 digits for the year.

Unfortunately it will accept anything above 2 digits for the year, which I understand why is happening but don't know how to fix!

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Check Box Validation

May 24, 2005

I have a client who needs some validation for checking to see if form fields have been filled out. This is pretty easy to me, however, their code through me for a loop. I can't change the code due to the PHP on the backend, so I have to work with what I got.

There are four check boxes for a category named INDUSTRY/MARKET. However all these checkboxes have different names (this is the hard part). how to I validate if at least one of these boxes where checked? Code:

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Validation Error Check ?

Jan 23, 2011

From stepping through the code, when the pound and pence fields on the form are blank, but the name is filled in, it should error at "Please fill in value for pence" but it doesnt? It just submits the form anyway?

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JS Multiple Validation Form Does Not Check

Apr 26, 2010

I don't know why it's not running the validation js first upon "submit", it goes straight to the "thankyou" page specified by the php (let me know if php needs to be posted). I've check my syntax over and over, I can't see anything.

I'm trying to have a "tell-a-friend" form where one requires to enter his/her first name, surname, email and a friend's email � with option of forward to to other 4 friends (total 5).

Here are the fields I need to validate:

My js (validationB.js) file:

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Validation - Check All The Field In Form ?

Aug 18, 2010

I have some problems with validating form in javascript.

I have a following HTML code:

What I want in validation is to check all the field in form (check for required fields etc). I want to show user error message in div tag with id='poruka'.

Part of code of function ValidirajFormu:

So, validation works OK, but message is not written in div tag. Only if all fields are correct, form is submited, but there are no error message.

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Form Validation Check For NULL?

Jan 8, 2010

I am putting some validation on some forms at work. The users have asked to put something in place to make sure that if you enter something in on field that you must enter something in the corresponding field.

Example : Lets say there is a Company field and a Position field. Well they would like that if you enter a Company you should enter a Position and the other way where if you enter a Position you just enter a Company.

Ok so thats easy enough I did something like the following.

if((form.Company1.value=="") && !(form.Position1.value=="")){
alert("Enter a Company into the Company field for row 1 or enter N/A");
form.Company1.focus();
return false;
}

Well now they want a message box to give the user the option it ignore that they have a blank field, and more or less want a �hey just to let you know, you didn�t put anything here

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JQuery :: Form Validation Using The Remote Check?

Jan 12, 2011

I already have the remote check working and it works fine. But the catch is that I want to allow submission even if my check returns false.

All I really want is to show a warning if the remote check returns false.

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Validation - Check To See If My Radio Button Is Not Checked

Feb 19, 2010

How would i check to see if my radio button is not checked.

I know in javascript the term "checked" works.

Is there a way to us unchecked?

Here is what i am trying to figure out.

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