title: mvc 4 razor upload a file without submitting the page form
body: <p>I am writing an MVC 4 app and need to allow the user to upload files, but don't want to submit the page's form when doing so. There is a bit of overhead in loading the whole form and I'd rather just update a partial on the page than reload it. I see this happening on other websites, but can't seem to get it to work for me.</p>
  
  <p>Any hints?</p>
  
  <p>Thanks,
  Mike</p>