How Do I Detect The File Size?

Mar 22, 2006

I need to detect the size of a file entered via input type file. How do I do this? Also it should work on both IE and FireFox.

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Limit File Size Or Request Size

May 27, 2010

I developed a web application and it is working fine, except for one issue. The application includes uploading files from a JSP to my servlet, and the issue is that i would like to have a limit for the uploaded files on the client side (before actually uploading it).

I investigated alot and found some ways like changing my JSPs to PHPs, which is not feasable for my application. I would also like to add that using the Flash component ("<object>") for uploading is not feasable also at this time. Using ActiveX does not work also (for some security issues in javascript, it can not access the system information, also ActiveX works only on IE).

I would like to add that I have my application running on Oracle application Server, JSPs for displaying the forms, MultiPart Java API for getting the form input values and files to my servlet and everything is developed in JAVA.

Either by limiting the file size or the limiting the whole request size sent to the servlet.

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Detect Screen Size Using Cookies?

Mar 26, 2010

I'm trying to detect the screen resolution of the client's computer. I've been using the following example:

<HTML>
<TITLE>screen resolution</TITLE>
<HEAD>
</HEAD>
<BODY>

[Code]...

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Detect <DIV> Size And Insert Into Another Page?

Aug 13, 2010

I have a goal in mind, and that is to get the width & height of a <DIV> tag in one document and insert them into another document...all on the same domain. It sounds like a simple task, but in case more detail is needed, let me explain:I have a page called 'demo.html' which launches a page called 'gallery/archive_iframe.html' via Shadowbox as an iFrame.

The problem is that 'gallery/archive_iframe.html' slightly differs in dimension on every browser and screen resolution. I want to have the iFrame's size detected every time it launches so Shadowbox can get solid dimensions to display it without scrollbars.Here is the code I would like to insert the dimensions in to:

<A HREF="/gallery/archive_iframe.html" rel="shadowbox;width=???;height=???" class="imgLink" title="Video Archive"><img src="gallery/videoarchive_thm.jpg" alt="Launch Video Archive (popup window)" width="260" height="162" border="0" /></A>

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Detect The Current Font Size?

Jan 5, 2011

I have a button (in html) and I want the center of the button to be on the center of the line I'm typing on... I was just putting it inside a span and then using this code to move it down.

<span style="position:relative; bottom:-10;">

It worked great! But... once I started allowing my users to change the font sizes the buttons got bigger and they needed to be moved down further...

if the font size was +1:

<font size="+1"><span style="position:relative; bottom:-10;">

if the font size was +6:

<font size="+6"><span style="position:relative; bottom:-27.5;">

So is there a way in javascript to detect the current font size and then adjust the span position based off of that? If I can just get the number of the current font size I can do all the rest of the coding, I just need a way to figure out the current font size and put it in a variable... I was thinking of using something like 1.0em so that it stays the same but then we have a basis of measuring off of but I have no clue..

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JQuery :: Detect Size Of An Image?

Apr 9, 2010

This is an update to a previous question which didn't get any replies. Having tried some things it boils down to a question of whether jQuery can detect the width of an image on the page when that width hasn't been defined in the image tag or css.

I'm designing templates for other authors to use. If they put an image of over a certain width in a div it'll break the layout. I've tried to write a function that gets (1) the name of the div and (2) the maximum width allowable. It should then check the images in that div and if they're over the maximum width, resize them to the maximum width. If they're under it should leave them alone. If a width is defined in the the width attribute it should leave it alone.

I know that is what 'max-width' is for, but the browser in our organization is IE6 and that's not going to change anytime soon. It ignores 'max-width'.

[Code]..

The result each time I tinker with it is that either it does nothing or it sets the widths of all images to maxwide, even the small ones. I'm doing wrong? The only clue I have is that if I alert the width of images going through the function, those without a defined width come up as 'auto', which it seems to think is greater than maxwide.

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Jquery :: Detect Window Size And Then Do Something With Switch Statement?

Feb 24, 2011

i would like to check for the window size with jquery and based on the different resolutions i would like to change the background image. So i was thinking to somehow use the "switch" statement for more cases, but i just don't know how this would look like. This is the basic structure i want but with more options:

if ((screen.width>=1024) && (screen.height>=768)) {
//do something
}

[code]....

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Jquery :: Detect Screen Size To Write Function?

Oct 5, 2011

I am using jFlow slider for my website and in the head there is that function

<script type="text/javascript">
$(document).ready(function(){
$("#myController").jFlow({

[code]....

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Input='FILE' - Can Detect If The File Browser Is Canceled

Dec 21, 2010

If a form as an input='file' element, and someone clicks on BROWSE and then changes their mind and clicks CANCEL, if JavaScript can detect that cancel?

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JQuery :: Get File Path & Size Of The File To Upload In Internet Explorer 7?

Sep 1, 2011

I'm trying to put in place a file upload validation check. So at the client-side, the User selects a file. Before uploading, at the GUI, if the file exceeds an imposed limit, it will prompt the User that it exceeds the permitted size for upload.

And if it is within the permitted size, the full file path of the file to be uploaded will then be obtained and then used for the actual upload to the Server.

My program is built on EXTJS and Java, running using Tomcat. Browser restricted to Internet Explorer 7 only.

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JQuery :: Mulit File Upload Plugin - Determining File Size?

Jun 2, 2011

I am using jquery Multifile upload plugin, I want to show the client a pop messages if he/she crosses certain size while uploading files..

<html>
<head>
<script src="/js/jquery.MultiFile.js" type="text/javascript" language="javascript" target="upload_target"></script>
<script>

[code]....

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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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JQuery :: Finding Out Size Of A File In Input Type=file In IE?

Nov 29, 2011

I've got a major headache with IE in that I have a support form that allows users to submit tickets with files which is then emailed off.

Using javascript, jQuery and PHP I have everything under control with all of our favourite browsers - but then comes along IE.

support.php
...
<!-- file -->
<div class="fileUploadEntry">

[code]....

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Detect End Of Video File.

Jul 23, 2005

I have a webpage in which a media player is embedded.I would like
to close the page at the end of the video. Can I detect the end of the
file so as to close the page programmatically?

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Detect If A File Is Being Dragged?

Aug 2, 2011

I want to make it so that when a file is being dragged I activate a filedrop, that would otherwise be inactive. Yet I do not know how to detect when a file is being dragged (much like how gmail changes when you are dragging a file). Can anyone point me in the right direction as to how this can be accomplished?

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Detect When File Has Downloaded Completely?

Jun 17, 2009

How to detect if the file has downloaded completely?

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File Size

Jul 23, 2005

Can JavaScript detect the size of an image file?

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Getting The Size Of A File

Jul 23, 2005

I have some links to files (.zip, .rar...) and i would like to get its size
could you say me how to do or give me some references?

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File Size...

Jul 23, 2005

I have developed an upload tool, that allows users to upload files (funny
that). The asp form object has a 'SizeLimit' property that can be set, to
prevent files being uploaded, that are too large. Is there a way in
Javascript, to interrogate the file size before the form is posted, so that
the validation can be done before trying to post the form.

The only information I can find, on file size, relates to images. But any
file can be uploaded through this tool, so I also need to determine the size
of other binary and text files.

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JQuery :: Detect Ajax With File Uploads?

Jul 23, 2009

I'm developing a framework that allow all navigation in normal mode or in ajax load.

I have a form to upload images and I can upload files correctly, but if I use the ajax form, the save page don't receive the HTTP_X_REQUESTED_WITH in $_SERVER PHP array (only occours when a file is uploaded).

How can I detect an ajax load with a file upload form?

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Detect Current URL Of PDF File In Different Frame Not Working In IE?

Jun 3, 2010

The system uses individual PDF files for each page, and you can navigate using the controls on the side. It's not ideal, as it was made to replace a horrible system and has the limitations of the content being presented.

That being said, I think it's pretty good. The trouble area is related to navigation: when you navigate the documents, some JavaScript detects the current URL of the content frame and updates the nav controls (previous and next page numbers) and table of contents links (bold, highlight) if they have changed. That part works fine. The problem area is with IE and PDF links. If you click a page link within the PDF, it opens that PDF file in the same frame. In FF and every other browser, the JS URL detection works fine.

In IE, of course, it doesn't detect that a different PDF is being displayed. If it can't detect the new PDF file, and by extension, the file number, the nav controls don't work right. Now - before anyone asks - it DOES work in IE if you navigate to the PDF document by using the links in the navigation system that I built. It's just when you arrive at a PDF from another PDF that it fails.

This is hard to explain more clearly, so take a look: [URL]

To see this in action, visit page 4, the table of contents. Click a page number link, for instance, page 9. Once it loads, click "next page" at the top left of the interface. In FF, it goes to page 10. In IE, it goes to page 5, since the JavaScript is unaware that the frame has changed PDF files. It doesn't make sense, since FF can see it plainly.

My code is all out in the open. This thing has to be designed to run off of a CD as well as on the website. If I could use server-side scripting, it would be VERY different, I assure you.

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File Size On Client?

Dec 16, 2000

I know there are restrictions on the client side in this regard, but thought I would ask. Can you determine a files size on the client? I purchased one of those upload to server applications. But I do not want to send large files. Their application only allows me check the side after sending the file to the server (after the fact). I need to know the size before hand. Just like validating text in a textbox before submission, I want to check the file size on the client before submission. Is there any way to do this on the client?

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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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Liniting File Size

Mar 23, 2002

i was wondering is there any good way to check a file size that is being uploaded to the server via a standart form, using Java Script?

i know this is easy to do using server side programing, but i need to do it somehow on the client side, before the file is being submitted...?

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Restrict File Size Before Upload?

Jun 14, 2011

In JSP / HTML, I want to restrict the size of file being uploaded.

<input type="file" name="myfile"/>

If the user trying to upload a file size bigger than some value say 5MB, i want to give mesage to the user. I don't want to wait till the file gets uploaded to server and then validate the file size. I am looking for client side validation. Can it be done using scripting language or any other way?

Need a solution for this in Internet Explorer. I got a solution using ActiveX control:

var myFSO = new ActiveXObject("Scripting.FileSystemObject");
var filepath = document.getElementById('myfile').value;
var thefile = myFSO.getFile(filepath);
var sizeInBytes = thefile.size;

But ActiveX controls are not allowed in our application. Is there any alternative way for this?

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Check The File Size - Before Uploading

Mar 31, 2011

<html>

This code is not working, i click the size button nothing is happen i checked ActiveXObject is not working i am using IE.

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