how can i clear the contents of the fileupload widget in a gwt application?

Question

In a GWT application, I am using the fileupload widget and when I upload the first file then it shows progressbar corresponding file size and after completion of uploading, the progress bar hides and then I upload second file this time shows both progressbar of first file and second file. To solve this problem I refresh the page using Window.Location.reload(); after uploading the first file, then it doesn't show the progressbar of the first file while uploading second file, it runs smooth. But there is no meaning of asynchronous of gwt. So how can I resolve this problem?

Thanks rahul

score 9 · Accepted Answer · edited Sep 25 '12 at 17:48

9

Use fileUploadWidget.getElement().setPropertyString("value", ""); when SubmitCompleteEvent is called.

@UiHandler("uploadFileFormPanel")
void handleuploadFileFormPanelSubmitComplete(SubmitCompleteEvent e){
    uploadFile.getElement().setPropertyString("value", "");
    presenter.uploadCompleted(e);
}

edited Sep 25 '12 at 17:48

Pedro Romano

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answered Sep 03 '12 at 09:39

Pulkit Anchalia

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score 6 · Answer 2 · answered Dec 22 '11 at 10:23

Answered on the GWT forum: https://groups.google.com/d/msg/google-web-toolkit/F3FIWQOBmqo/-lnJtAbV9xUJ

The only way to clear an <input type=file> (or FileUpload widget in GWT) is to reset() the enclosing form (FormPanel). If that's not possible, then you'll have to replace the FileUpload with a newly created one (this is what I did years ago, works great)

how can i clear the contents of the fileupload widget in a gwt application?

2 Answers2