(Quick Reference)
uploadForm
Purpose
Creates a form that can submit multi-part data for file uploads.
Examples
<g:uploadForm name="myUpload">
<input type="file" name="myFile" />
</g:uploadForm>Description
Identical to the standard
form tag except that it sets the
enctype attribute to
"multipart/form-data" automatically.
Attributes
action (optional) - the name of the action to use in the link; if not specified the default action will be linked
controller (optional) - the name of the controller to use in the link; if not specified the current controller will be linked
id (optional) - The id to use in the link
url (optional) - A map containing the action, controller, id etc.
Source