W dniu sobota, 16 lutego 2013 23:26:19 UTC+1 użytkownik membersound napisał:
>
> Hi,
>
> I add a new entry to a DataTable and want to scroll it into the view, as
> it is added at the end of the list.
>
> @UiHandler("buttonAdd") {
> onAdd(ClickEvent evt) {
> Foo foo = new Foo();
> dataProvider.getList().add(foo);
>
> dataGrid.getRowElement(dataProvider.getList().indexOf(foo)).scrollIntoView();
> }
>
> But when I add the items I get following errors.
>
> Adding 1st item:
> com.google.gwt.event.shared.UmbrellaException: Exception caught: Row
> index: 0, Row size: 0
>
> Adding 2nd item:
> com.google.gwt.event.shared.UmbrellaException: Exception caught: Row
> index: 1, Row size: 1
>
> WHY??
>
>
>
My guess.
After dataProvider.getList().add(foo) is executed,
DataDrid is updated asynchronously,
and you try to
dataGrid.getRowElement(...)
before this update happens.
Maybe
Scheduler.get().scheduleDeferred(...)
will help you.
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