CODEWITHSUNDEEP
javafx
Joey
Joey

Reputation: 83

Can't select different cells in same row of tableview JavaFx

I have a TableView, where I need to enable the selection of any cells(one at a time). For now, I use this code:

        tableView.getSelectionModel().selectedItemProperty().addListener(new ChangeListener() {
        @Override
        public void changed(ObservableValue observableValue, Object oldValue, Object newValue) {
            if(tableView.getSelectionModel().getSelectedItem() != null)
            {
                TableView.TableViewSelectionModel selectionModel = tableView.getSelectionModel();
                ObservableList selectedCells = selectionModel.getSelectedCells();
                TablePosition tablePosition = (TablePosition) selectedCells.get(0);
                String val = (String)tablePosition.getTableColumn().getCellData(newValue);
                System.out.println("Selected Value: " + val);
                selectionTextField.appendText(val);
            }
        }
    });

The problem is, I can't get the values of different cells in the same row after each other. I think it's because it's the same row, the selection listener is not triggered. I tried clearSelection(), but then I get out of bounds exception, and I read somewhere that I cant change the table model in the same listener. Any tips?

Thank you.

Upvotes: 1

Views: 4835

Answers (1)

James_D
James_D

Reputation: 209684

If you are using cell selection instead of row selection (in other words, if you have called tableView.getSelectionMode().setCellSelectionEnabled(true);), then you should observe the list of selected cells instead of the selectedItem property. The selectedItem property only indicates the row that is selected, so it only changes if you select a new row.

ObservableList<TablePosition> selectedCells = table.getSelectionModel().getSelectedCells() ;
selectedCells.addListener((ListChangeListener.Change<? extends TablePosition> change) -> {
    if (selectedCells.size() > 0) {
        TablePosition selectedCell = selectedCells.get(0);
        TableColumn column = selectedCell.getTableColumn();
        int rowIndex = selectedCell.getRow();
        Object data = column.getCellObservableValue(rowIndex).getValue();
    }
});

Upvotes: 4

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