Simple Form Question
marsh...@gmail.com
I'm using the FormPanel because I've got a FileUpload widget.
In old school, form submission goes to the server and results in a new
HTML page getting sent back to the browser. This is the effect I was
hoping for. In GWT, after form.submit, control returns to the GWT
entry point through the FormHandler.onSubmitComplete.
How can I get the effect of submitting the form and then having my
servlet (which processes the form) generate a new HTML page to replace
the current GWT entry point?
All the HTML I want to display came back in
FormSubmitCompleteEvent.getResults()
so is there a simple call I can make to replace the current page with
the HTML???
marsh...@gmail.com
// the <html> tag has a rootElement id in it so this will replace the
document HTML
// with what comes back from the submit.
FormHandler.onSubmitComplete(FormSubmitCompleteEvent event) {
Element root = DOM.getElementById("rootElement");
DOM.setInnerHTML(root,html);
This doesn't really work for me though because my servlet is returning
an HTML page that contains a GWT entry point which makes an RPC at
onLoad time.
So we really need a FormPanel that can submit to the server and not do
a callback to the GWT page that submitted...
How bout a constructor like: FormPanel(boolean returnResultsToCaller)
Vivian Li
Hi Marshall62,
If you want to simply submit a form and replace the GWT application with the results of the form, see here: http://code.google.com/webtoolkit/documentation/com.google.gwt.user.client.ui.FormPanel.html#FormPanel(java.lang.String)
Just use null for the target of the FormPanel. Here is some sample code:
FlowPanel fp = new FlowPanel();
final FormPanel form=new FormPanel((String)null);
form.setEncoding(FormPanel.ENCODING_URLENCODED);
form.setAction("http://www.google.com/search ");
TextBox tb=new TextBox();
tb.setName("q");
Button b=new Button("Search");
b.addClickListener(new ClickListener() {
public void onClick(Widget sender) {
form.submit();
}
});
fp.add(tb);
fp.add(b);
form.add(fp);
-Vivian