Validate file size using java script

Question

I am trying to validate file size, which I am trying to upload by a File Upload Control. To validate the size of the file, I am using java script code. But it is throwing run time error. Please somebody help me.

<script language="javascript" type="text/javascript">
    function getSize() {
        var myFSO = new ActiveXObject("Scripting.FileSystemObject");
        var filepath = document.upload.file.value;
        var thefile = myFSO.getFile(filepath);
        var size = thefile.size / (1024 * 1024);
        alert(size + "MB");
    }
</script>

Error message : Microsoft JScript runtime error: Automation server can't create object

you can have look at this <stackoverflow.com/questions/1832415/…> — Darshan
– Darshan, Commented Apr 18, 2013 at 10:22

Pranay Rana · Accepted Answer · 2013-04-18 10:26:37Z

2

Javascript has no access to the filesystem so its not possible to check the size of the file by javascript.

and

new ActiveXObject("Scripting.FileSystemObject"); - is supported by IE only so do check you are suing IE not other browser.

Check this : How to validate upload file size and file extension using JavaScript ?

edited Apr 18, 2013 at 10:26

answered Apr 18, 2013 at 10:21

Pranay Rana

177k37 gold badges244 silver badges267 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

alfdev Over a year ago

True, you only can with html5.

Saiyam · Accepted Answer · 2013-05-06 12:08:47Z

0

File size can only be retrieved in browsers other than IE while using Javascript..

answered May 6, 2013 at 12:08

Saiyam

1382 silver badges11 bronze badges

Collectives™ on Stack Overflow

Validate file size using java script

2 Answers 2

1 Comment

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related