Hi, there
I am new to GWT, so maybe this question has been answered somewhere
else.
The question is regarding the FormPanel submission. I defined a
FileUploadDialog class, which is inherited from GWT DialogBox class.
In my FileUploadDialog constructor, I decided to attach a FormPanel to
it and, then I added several widgets to the FormPanel. The code is
like the following:
================================================================================
public FileUploadDialog() {
setText("Upload Files");
// Create a FormPanel and point it at a service.
form = new FormPanel();
form.setAction("/splat/uploadFileHandler");
// Because we're going to add a FileUpload widget, we'll need to
set the
// form to use the POST method, and multipart MIME encoding.
form.setEncoding(FormPanel.ENCODING_MULTIPART);
form.setMethod(FormPanel.METHOD_POST);
VerticalPanel panel = new VerticalPanel();
form.setWidget(panel);
RadioButton phyBtn = new RadioButton("FileType",
"PhysicalFile");
RadioButton virBtn = new RadioButton("FileType", "VirtualFile");
phyBtn.setChecked(true);
panel.add(phyBtn);
panel.add(virBtn);
// Create a FileUpload widget.
final FileUpload upload = new FileUpload();
upload.setTitle("select file");
upload.setName("uploadFormElement");
panel.add(upload);
// Add a 'submit' button.
panel.add(new Button("Upload", new ClickListener() {
public void onClick(Widget sender) {
form.submit();
}
}));
// Add a 'submit' button.
panel.add(new Button("OK", new ClickListener() {
public void onClick(Widget sender) {
hide();
}
}));
// Add an event handler to the form.
form.addFormHandler(new FormHandler() {
public void onSubmit(FormSubmitEvent event) {
// This event is fired just before the form is submitted. We
can take
// this opportunity to perform validation.
if (upload.getFilename().length() == 0) {
Window.alert("please select file");
event.setCancelled(true);
}
}
public void onSubmitComplete(FormSubmitCompleteEvent event) {
Window.alert(event.getResults());
}
});
setWidget(form);
}
================================================================================
but it looks like I could not get any parameters from the
uploadFileHandler servlet, I am guessing this maybe because this
FormPanel is attached to a DialogBox, but I do not understand why?
--
You received this message because you are subscribed to the Google Groups
"Google Web Toolkit" group.
To post to this group, send email to [email protected].
To unsubscribe from this group, send email to
[email protected].
For more options, visit this group at
http://groups.google.com/group/google-web-toolkit?hl=en.
