"shakenbrain" wrote : You can upload any kind of file with the file upload 
component.  

Yes, I can upload any content and I can see binary data of the gif image in the 
database with contentType field set to  image/gif

But the problem is that web browsers (e.g. IE7, Firefox 2.x, Opera 9.x) don't 
show uploaded gif images.

"shakenbrain" wrote : 
  | The seamspace example, however, accepts only certain types of image files.  
I believe it looks at the content-type of the uploaded file and rejects it when 
not one of the accepted types.

<s:fileUpload id="picture" data="#{register.picture}" accept="image/gif"
  |                               contentType="#{register.pictureContentType}" 
/>

But if you mean accept attribute, it was intended for file filtering by web 
browsers and is ignored.


http://htmlhelp.com/reference/html40/forms/input.html

anonymous wrote : The file input type creates a field through which users can 
upload files from their local computer or network. The VALUE attribute 
specifies the name of the initial file, but it is typically ignored by browsers 
as a security precaution. The ACCEPT attribute gives a comma-separated list of 
media types accepted, allowing the browser to filter out inappropriate files. 
Current browsers generally ignore the ACCEPT attribute.

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