Window opens when form is submitted

[Halabe]

Hi,

I am using the below for my Dynamic Form.
form.setTarget("hidden_frame");
form.setAction("MyServlet");

form.submitForm();

When my servlet finishes its work (uploads the file), a new window is opened containing the response of the servlet.

When I was using plain GWT, there was a method onSubmitComplete(FormSubmitCompleteEvent event) that should be overriden to get the event which is the response of the servlet.

Is there any way not to open a new window, to keep the window of my application as it was and to get the response in this window as I used to do in plain GWT?

Any help is appreciated.

Thank you.

[Halabe]

I had misplaced the hidden_frame.

I now need to send a response from the servlet to the original page.

I found that I can use a HiddenItem in the thread:
http://forums.smartclient.com/showth...ght=fileupload

I got a new problem now in my servlet:
When I use request.getParameter("callbackName"), I am getting a null value.
I tried this for other HiddenItems in the form I submitten and got the same problem.

Am I doing something wrong or this is an issue?

Thank you.

[Isomorphic]

HiddenItems definitely submit values, keep looking. If you think you've found a bug, please post a standalone test case.

[Halabe]

Thanks for the reply but I am still getting the issue.
Here is my client side code:

 
uploadForm = new DynamicForm();
        uploadForm.setEncoding(Encoding.MULTIPART);
        UploadItem fileItem = new UploadItem("Test Image");
        fileItem.setTitleOrientation(TitleOrientation.LEFT);
        final HiddenItem callbackItem = new HiddenItem("callbackName");
        callbackItem.setName("callbackName");


        uploadForm.setTarget("hidden_frame");
        uploadForm.setAction("ImageUploadServlet");
        uploadForm.setMethod(FormMethod.POST);

        IButton uploadButton = new IButton("Upload...");
        uploadButton
                .addClickHandler(new com.smartgwt.client.widgets.events.ClickHandler() {
                    public void onClick(ClickEvent e)
                    {
                        String callbackName = JavaScriptMethodHelper
                                .registerCallbackFunction(new JavaScriptMethodCallback() {
                                    public void execute(String obj)
                                    {
                                        uploadFinished(obj);
                                    }

                                });
                        callbackItem.setValue(callbackName); 
                                        uploadForm.submitForm();

                    }
                });

        uploadForm.setItems(fileItem, callbackItem);

My server side code

String cback = (String) request.getParameter("callbackName");

is giving a null result.

Any ideas?

[weihnachtsmann]

SmartGWT 3.0/FF9.0.1

Suffered the same problem. I am not able to access the form values in a correctly working FileDownloadServlet that is requested by a DynamicForm submission. The parameters are send to the servlet, however the values remain empty.

Client:

DynamicForm form= new DynamicForm(){{
   setMethod(FormMethod.GET);
   setAction(TARGET_URL);
   setEncoding(Encoding.NORMAL);
   setCanSubmit(true);

   FormItem fileItem= new HiddenItem("fileName");
   fileItem.setValue("/my/testFile.txt");
   fileItem.setDefaultValue("/my/testFile.txt");

   FormItem fileItem2= new HiddenItem("fileName");
   fileItem2.setValue("/my/testFile2.txt");
   fileItem2.setDefaultValue("/my/testFile2.txt");

   setItems(new FormItem[]{fileItem, fielItem2});
}};

System.out.println(fileItem.getValue());  //correct
System.out.println(fileItem2.getValue());  //correct
form.submitForm();

Servlet:

public void doGet(HttpServletRequest request, HttpServletResponse response)
{	
   String[] fileNames= request.getParameterValues("fileName");
   //Array conraining two empty string
}

My LGPL workarround:

HTMLPane downloadTarget= new HTMLPane();
downloadTarget.setContentsType(ContentsType.PAGE);
downloadTarget.setVisible(false);
downloadTarget.setHeight("1px");
downloadTarget.setWidth("1px");
downloadTarget.setHttpMethod(SendMethod.GET);
parent.addChild(downloadTarget);


//and now each time a download shall take place...
HashMap<String,List<String>> requestParams= new HashMap<String,List<String>>();
List<String> filesToDownload= new ArrayList<String>();
filesToDownload.add(/my/testFile.txt);
filesToDownload.add(/my/testFile2.txt);
requestParams.put("fileName", filesToDownload);

downloadTarget.setContentsURLParams(requestParams);
downloadTarget.setContentsURL("/path/to/servlet");	//new GET request