Re: Upload file and display its contents using AJAX
Thanks Martin, I had just found https://issues.apache.org/jira/browse/WICKET-2420 before reading your reply! I guess that clears things. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473p4654510.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Upload file and display its contents using AJAX
Wicket uses an iframe internally for Ajax file uploads. On Wed, Dec 5, 2012 at 11:55 AM, pureza wrote: > I was able to get rid of the submit button, but I don't understand why it > works (maybe some wicket magic?). > > I have a Form object and in the onSubmit() method I read the uploaded file > and store it in a model. I also added an AjaxFormSubmitBehavior to the form > that updates the textarea with the contents of the file via ajax. > > The markup is simply: > > > This works fine (i.e. when I choose a file to upload the textarea is > updated > with the file's contents), but I don't understand why. The form submission > does not refresh the whole page, but I was told that the only way I could > do > this was using an iframe, which I'm not doing. Please note that I am also > not using any kind of upload library such as jquery-file-upload. > > Do you have any idea as to why this works the way it does? I'm clueless... > > Thanks! > > > > > > -- > View this message in context: > http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473p4654508.html > Sent from the Users forum mailing list archive at Nabble.com. > > - > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > > -- Martin Grigorov jWeekend Training, Consulting, Development http://jWeekend.com <http://jweekend.com/>
Re: Upload file and display its contents using AJAX
I was able to get rid of the submit button, but I don't understand why it works (maybe some wicket magic?). I have a Form object and in the onSubmit() method I read the uploaded file and store it in a model. I also added an AjaxFormSubmitBehavior to the form that updates the textarea with the contents of the file via ajax. The markup is simply: This works fine (i.e. when I choose a file to upload the textarea is updated with the file's contents), but I don't understand why. The form submission does not refresh the whole page, but I was told that the only way I could do this was using an iframe, which I'm not doing. Please note that I am also not using any kind of upload library such as jquery-file-upload. Do you have any idea as to why this works the way it does? I'm clueless... Thanks! -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473p4654508.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Upload file and display its contents using AJAX
Hi again, I was able to get the desired result by putting an AjaxButton on the form containing the component. So, the user selects a file, presses submit and everything works. However, I'd prefer if the upload would start immediately after the user selects a file. Can I get rid of the button? Thanks. -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473p4654478.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Upload file and display its contents using AJAX
Nick, As I said on my previous email, I can't access the file contents within an AjaxBehavior, because FileInputField.getModelObject() is always null (maybe I'm not setting it up correctly when I instantiate the FileInputField?). -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473p4654477.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
Re: Upload file and display its contents using AJAX
Once the file is uploaded, set the contents of the IModel backing the TextArea, and then add the Form(or TextArea) to the AjaxRequestTarget. On Tue, Dec 4, 2012 at 11:51 AM, pureza wrote: > Hi, > > I need to upload a file, parse it and display its contents inside a > textarea, all this using ajax. > > At first I tried to use jquery-file-upload, and I was able to upload the > file to an IResource as explained at > http://wicketinaction.com/2012/11/uploading-files-to-wicket-iresource/. > However, I have no idea as to how to display the contents of the file > inside > the textarea when the upload is finished. > > Then I tried to use a plain FileUploadField component and I attached an > AjaxFormSubmitBehavior to it, but it seems that the model is always null > and > I am unable to access the uploaded files. > > Any help is appreciated. > > Thanks! > > > > > -- > View this message in context: > http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473.html > Sent from the Users forum mailing list archive at Nabble.com. > > - > To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org > For additional commands, e-mail: users-h...@wicket.apache.org > >
Upload file and display its contents using AJAX
Hi, I need to upload a file, parse it and display its contents inside a textarea, all this using ajax. At first I tried to use jquery-file-upload, and I was able to upload the file to an IResource as explained at http://wicketinaction.com/2012/11/uploading-files-to-wicket-iresource/. However, I have no idea as to how to display the contents of the file inside the textarea when the upload is finished. Then I tried to use a plain FileUploadField component and I attached an AjaxFormSubmitBehavior to it, but it seems that the model is always null and I am unable to access the uploaded files. Any help is appreciated. Thanks! -- View this message in context: http://apache-wicket.1842946.n4.nabble.com/Upload-file-and-display-its-contents-using-AJAX-tp4654473.html Sent from the Users forum mailing list archive at Nabble.com. - To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org For additional commands, e-mail: users-h...@wicket.apache.org
