How to upload file using FileUploadInputElement and HttpRequest.requestCrossOrigin()

Asked Jan 14 '14 at 04:17

Active Jan 14 '14 at 06:07

Viewed 531 times

I have a FileUploadInputElement in my dart code and I want to upload it by POST after button click. Can I sent files via HttpRequest.requestCrossOrigin()? I don't want to use form because it cause my page refresh.

ButtonElement uploadButton;

main(){
  .. 
  uploadButton.onClick.listen((e) => handleUpload(e));
  ..
}

handleUpload(Event e){
    List<File> files = uploadElement.files;

    HttpRequest.requestCrossOrigin(...);
}

edited Jan 14 '14 at 06:07

Günter Zöchbauer

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asked Jan 14 '14 at 04:17

Roger Chan

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Is there a special reason why you want to use `requestCrossOrigin` instead of `request`? – Günter Zöchbauer Jan 14 '14 at 06:10
This may help http://stackoverflow.com/questions/13298140 – Günter Zöchbauer Jan 14 '14 at 06:16
Thanks your help! Any way can handle multiple upload? – Roger Chan Jan 14 '14 at 07:01
No, haven't done this myself yet. As a start you can send the files one after the other. [How to upload a file in Dart?](http://stackoverflow.com/questions/13298140). The answer is rather old but the code seems right at the first glance. You have to change the events `on.xxx` to `onXxx` though. – Günter Zöchbauer Jan 14 '14 at 08:33

How to upload file using FileUploadInputElement and HttpRequest.requestCrossOrigin()

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