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Other ways to check the file size before upload

Answer 1

A:

Is there any other way that I can just check the size of a file before upload?

Not in JavaScript, the file size is not in the DOM.

Jonas Elfström 2010-02-03 07:25:50

Answer 2

A:

when instantiating SWFUpload, there are two parameters you need to pass: file_size_limit, and file_queue_error_handler:

new SWFUpload({
    file_size_limit: "10 MB",
    file_queue_error_handler: queueErrorHandler,
    [...]
})

and then:

function queueErrorHandler(file, errorCode) {
    if (errorCode == SWFUpload.QUEUE_ERROR.FILE_EXCEEDS_SIZE_LIMIT) {
        alert("File exceeds the 10MB limit!");
    }
}

this checks if the file size is within limits before starting the upload

Victor Stanciu 2010-02-03 07:58:51

I just don't want to upload the file using Flash. I mean, I just want to check the size of the file using SWFUpload and then upload the file using the normal process. Does it seem possible?

jean27 2010-02-03 08:23:11

I also found out that I can't manipulate the value of input type file so I guess what I really want is impossible.

jean27 2010-02-03 08:26:04

yes, using SWFUpload just to check the file size would work if you could set the value property of the normal file input

Victor Stanciu 2010-02-04 10:36:22

We can't set the value property of the normal file input. It is illegal.

jean27 2010-02-15 09:02:53

Answer 3

+1 A:

hi,

with the W3C FileAPI (implemented at least by Firefox 3.6) you can.

See this link for details

http://hacks.mozilla.org/2009/12/w3c-fileapi-in-firefox-3-6/

Cheers

denisjacquemin 2010-02-04 15:18:53

Thanks but our upload must be compatible with other browsers. Anyway, I'll check it out.

jean27 2010-02-12 10:01:24

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