<g:uploadForm name="myUpload">
    <input type="file" name="myFile" />
</g:uploadForm>uploadForm
Purpose
Creates a form that can submit multi-part data for file uploads.
Examples
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.