Why doesn't the sort on my TableView in JavaFX work

Question

guys,

my Program has a lot of TableViews. In all tables except one sorting is working. I can't find my mistake in that single TableViews. When clicking the header it seems like its sorting but not refreshing the view. If I change the tab and go back, the TableView is sorted. If a row is selected and I click on the header the selected color is sorted on the right spot but not the table data.

I have my ObservableList and TableView:

private ObservableList<ProjectViewModel>    projectViewModelList = null;

// some more TableColumns
@FXML
TableColumn<ProjectViewModel, String>       TableColumnToolchainStepphase;
@FXML
TableView<ProjectViewModel>                 TableViewToolchain;

my initialize:

@FXML
public void initialize(){
    //...
    initializeLists();
    //...
    initTableViewToolchain();
    initTableColumns();
    //...
}

private void initializeLists(){
    projectViewModelList = FXCollections.observableArrayList();
}
private void initTableViewToolchain(){
    TableViewToolchain.setItems( projectViewModelList );
}
private void initTableColumns(){
    TableColumnToolchainStepphase
            .setCellValueFactory( new Callback<CellDataFeatures<ProjectViewModel, String>, ObservableValue<String>>() {

                @Override
                public ObservableValue<String> call( CellDataFeatures<ProjectViewModel, String> param ){
                    String string = param.getValue().getStepphaseString();
                    return new ReadOnlyStringWrapper( string );
                }
            } );

}

my table population:

private void setProjectViewModelList( Collection<ProjectViewModel> projectViewModelCollection ){
    projectViewModelList.clear();
    projectViewModelList.setAll( projectViewModelCollection );
}

Where did i go wrong?

Answer 1

I did a workaround i force the sort and refresh on mouseclick:

TableViewToolchain.setOnMouseClicked( ( MouseEvent event ) ->{
   TableViewToolchain.sort();
   TableViewToolchain.refresh();
} );

So when clicking on those coulmns the sort happens as intended.