dave dave - 1 year ago 82
HTML Question

how to change the file input's filelist

I have this

of type
, and I want to change its
list. Example:

<input type = "file" id = "fileinput" />
<script type = "text/javascript>
document.getElementById("fileinput").files = [10];

The problem is that the
list is not set. How do I do it?

Answer Source

For security reasons, browsers prevent javascript from changing the files which will be uploaded: only the user can select files via the user interface. This is to prevent an evil script to upload /etc/passwd, for example, without the user knowing.

The one exception is that calling "reset" on the form will clear the file or filelist, but you can never add to programmatically.