Hi, Don't know if it helps but we have a servlet that processes the fileupload and then redirects to another servlet with /some/code And that servlet is the one responding to the form just by writing a JSON string on the writer. In the FormCompleteHandler you can parse the JSON or check for errors.
2010/3/15 fletcher <fle...@fletchowns.net> > Hello - > > I'm trying to create a file upload form that writes to Blobstore. > Let's say my form has two inputs, one of type file, and another, of > type text. We'll call the text input the Caption. When the form gets > submitted via an XMLHttpRequest from Javascript, I want to be able to > say there was a problem with the Caption without having to refresh or > redirect the page. Is there any way to do this on App Engine? Or do I > need to split up my ajaxy forms and my file upload forms? > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > google-appengine-j...@googlegroups.com. > To unsubscribe from this group, send email to > google-appengine-java+unsubscr...@googlegroups.com<google-appengine-java%2bunsubscr...@googlegroups.com> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to google-appengine-j...@googlegroups.com. To unsubscribe from this group, send email to google-appengine-java+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.