How to correctly customize the text label of a JavaFX ComboBox

Hello

from Swing to 8 JFX, I'll try to find out how to do something I would normally do in a single super ListCellRenderer, i.e. to customize the string that is displayed for an item. I tried this:

ComboBox<Integer> combo = new ComboBox<>();
    combo.getItems().addAll(1, 2, 3);
    combo.setCellFactory(new Callback<ListView<Integer>, ListCell<Integer>>() {
        @Override
        public ListCell<Integer> call(ListView<Integer> param) {
            return new ListCell<Integer>(){
                @Override
                protected void updateItem(Integer item, boolean empty) {
                    if(item != null)
                        setText("#" + item);
                }
            };
        }
    });

However, when I do this, the custom string is not used for the selected item (rather the toString() standard value of the element). Apart from that, it is more selectable with the mouse (I submitted a bug report for this to https://javafx-jira.kenai.com/browse/RT-37445), but this isn't really the point of my question.

What Miss me? Is not the way to do it? The thing I have to do to make sure that the selected item is also rendered using the custom cell or is there a different mechanism for that?

Thank you

Robert

There is no bug here (in the API, there are some bugs in your code). The question of the selection is because you call implementation of the superclass of the updateItem (...). The display of the selected item is controlled by the button cell, not the cell factory. If you have the permissions to do so, it might be useful to retract or close the jira.

Tags: Java

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