How do you create a table cell factory in JavaFX to display a ChoiceBox?

Question

I am trying to display a ChoiceBox inside of a TableView in JavaFX. Right now I am just trying to test if I can get this working, so I am generating fake data within the cell fa

Answer 1

ChoiceBoxTableCell.forTableColumn(...) returns a Callback itself (i.e. it returns the cellFactory, not the cell).

You can just do

ObservableList<String> testlist = FXCollections.observableArrayList("A", "B", "C");
guiSpecifierColumn.setCellFactory(ChoiceBoxTableCell.forTableColumn(testlist));

If you are implementing the factory yourself, its call(...) method needs to return the actual cell. In this case you would just construct a ChoiceBoxTableCell directly and return it:

guiSpecifierColumn.setCellFactory(
    new Callback<TableColumn<RequirementsProperty, String>, TableCell<RequirementsProperty, String>>() {
         @Override
         public TableCell<RequirementsProperty, String> call(TableColumn<RequirementsProperty, String> param) {
              ObservableList<String> testlist = FXCollections.observableArrayList("A", "B", "C");
              return new ChoiceBoxTableCell(testlist);
         }
    });