Hi all.
I'm using GWT 2.0
In my application I have to render on the browser an html form with a
lot of input widgets such as textfield, checkbox, and so on.
The exact composition of such widgets is stored in a database; in
other words I don't know how the form must look like a-priori, but I
need to build it dynamically based on what's stored in the db.
I'm trying to follow this approach: the client send and RPC request to
the server side of the application through a method that returns a
VerticalPanel, like this:
public class MyServiceImpl extends RemoteServiceServlet implements
MyService {
public VerticalPanel getMyForm() {
VerticalPanel pan = new VerticalPanel();
...
pan.add( new TextBox(...) )
...
return pan;
}
}
This approach leads me to this error at compilation-time:
[ERROR] com.google.gwt.user.client.ui.VerticalPanel is not assignable
to 'com.google.gwt.user.client.rpc.IsSerializable' or
'java.io.Serializable' nor does it have a custom field serializer
(reached via com.google.gwt.user.client.ui.VerticalPanel)
[ERROR] com.google.gwt.user.client.ui.VerticalPanel has no available
instantiable subtypes. (reached via
com.google.gwt.user.client.ui.VerticalPanel)
How can I workaround this problem, or what approach should I follow ?
Thank you
Jack
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