dojox/form/Uploader additional parameters

Question

I would like to use dojox/form/Uploader and post some additional data to upload url. I tried to use submit() method to submit the form in which upload lays, I set uploader uploadOnSelect: false but was not able to catch the file choose event to trigger the submit() function. My html looks like this:

<form id="myform" method="post" enctype="multipart/form-data">
<input type="hidden" name="message" value="something" >
<div id="uploader"></div>
</form>

And my upload js looks like this:

require(['dojox/form/Uploader',"dojo/dom",
         "dojox/form/uploader/plugins/IFrame",
         "dojo/domReady!"], function(Uploader, dom){

  myUploader = new Uploader({
    label: "Select files",
    multiple: false,
    uploadOnSelect: false,
    url: "UploadFile"
  }, "uploader");

 myUploader.startup();


});

Where should I put the myUploader.submit(); function for uploader to submit on file choose?

Answer 1

Try this :

// [...]

myUploader.on('change', function(){
    uploader.submit(dom.byId("myform"));
});

myUploader.startup();