You might consider supplying your own sortPolicy (see sortPolicyProperty <https://openjfx.io/javadoc/15/javafx.controls/javafx/scene/control/TableView.html#sortPolicyProperty>). It could remove your "total" object, call the DEFAULT_SORT_POLICY <https://openjfx.io/javadoc/15/javafx.controls/javafx/scene/control/TableView.html#DEFAULT_SORT_POLICY> and then add your total object back.
Scott On Sun, Dec 20, 2020 at 4:50 PM Chuck Davis <cjgun...@gmail.com> wrote: > Thanks guys for the link to the digest. > > I've looked through a couple of years and find nothing that addresses my > interest. As background, I write financial applications and usually when a > user selects something to display in a table it's because they're > interested in the total amount. And it is easy to provide that information > to them on the initial display. > > The rub comes when they select a column header or otherwise sort the > table. I need, first of all, to eliminate the total object from the model > (this is done easily by listening to the onSort property). Then, after the > sort is complete I need to add the total object back to the model. If I > don't eliminate the total object from the model the sort puts it in very > strange places..... What I need to know is when the sort is complete so > that I can add the total object back into the model and get it displayed. > > I've been looking at the TableView source and find the following code near > the start of the sort() method: > SortEvent<TableView<S>> sortEvent = new SortEvent<>(TableView.this, > TableView.this); > fireEvent(sortEvent); > > It seems to me it would be trivial to invent another event type > SORT_COMPLETE and emit it at the end of the sort() method to notify the > program that the sort has been completed. And that would certainly solve a > major headache with showing a total amount for financial tables. What I > don't know is whether the sort is done on another thread in which case a > Future would probably be required to detect the sort completion. > > If this were implemented we programmers would be able to detect both the > start and completion of a sort of the table and proceed accordingly. It > would be VERY helpful. > > Thanks for reading. >
