> I need to wrap an existing HTML instead of creating widgets
> dynamically, so that end user will have the entire form displayed
> before initialization of GWT components. But then there is a problem:
> if you attach RootPanel to an existing <div> element and then use
> Widget.wrap ( element ) for the FormPanel and its input controls, you
> get the exception:
>
> java.lang.AssertionError: A widget that has an existing parent widget
> may not be added to the detach list
>
> I've googled about the problem and found out that this exception
> prevents code from messing up widgets hierarchy; this is totally
> understandable point, but is there any way to get the job done? For a
> number of reasons I really need those widgets to initialize from HTML
> instead of being created dynamically.
>
> Any ideas?
Either:
1. do not use a RootPanel on an ancestor div of your form (obviously)
2. Reverse the order of the calls: FormPanel::wrap() first, then
RootPanel.get(); see issue 3528
http://code.google.com/p/google-web-toolkit/issues/detail?id=3528
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