Setting Form EncType Dynamically To Multipart/Form-Data In IE (Internet Explorer)
Posted June 27, 2008 at 10:07 AM
A while back, I posted an AJAX-Style file upload demo. While using that technique in a current project, I discovered a bit of a bug. In FireFox, you can dynamically set the EncType of a form element to be "multipart/form-data" for file uploads; however, this does not work in Internet Explorer (IE). Apparently in IE, you have to set the "encoding" of the form rather than the "enctype". The good news is, you can set both values without concern and this will take care of the problem:
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- // Using jQuery, set both the enctype and the encoding
- // attributes to be multipart/form-data.
- $( "form#upload-form" )
- .attr( "enctype", "multipart/form-data" )
- .attr( "encoding", "multipart/form-data" )
- ;
Minor note, but wanted to write this down to help me remember.
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Reader Comments
Does firefox also work with "encoding" rather than just "enctype"? Would save you an extra line :).
Posted by Gareth Arch on Jun 27, 2008 at 12:43 PM
@Gareth,
I actually didn't even check that.
The angel in me would prefer to stay with "enctype" as that is what the name of the attribute actually is and therefore what the real "intent" of the attr() function is meant to be.... but if all browsers worked with "encoding", the devil in my might not care ;)
Posted by Ben Nadel on Jun 27, 2008 at 12:47 PM
