public class MainController implements Initializable {

@FXML
private SpreadsheetView spreadSheet;

@FXML
private Label cellNumber;
@FXML
private TextField cellExpression;
@FXML
private GridPane gridPane;

ObservableList<ObservableList<SpreadsheetCell>> container;
public static String orderedCellNunber;

@Override
public void initialize(URL url, ResourceBundle rb) {
    int rowCount = 50;
    int columnCount = 30;
    GridBase grid = new GridBase(rowCount, columnCount);

    container = FXCollections.observableArrayList();
    for (int row = 0; row < grid.getRowCount(); ++row) {
        final ObservableList<SpreadsheetCell> list = FXCollections.observableArrayList();
        for (int column = 0; column < grid.getColumnCount(); ++column) {
            SpreadsheetCellBaseMy cell = new SpreadsheetCellBaseMy(row, column, 1, 1);
            cell.setItem(new String[]{"cxas", "fdfdg"});
            cell.setFormat(cellArray[1]);

            list.add(cell);
            //list.add(SpreadsheetCellType.STRING.createCell(row, column, 1, 1,""));

        }
        container.add(list);
    }
    grid.setRows(container);
    spreadSheet.getSelectionModel().getSelectedCells().addListener(new InvalidationListener() {

        @Override
        public void invalidated(Observable o) {
            for(TablePosition cell:spreadSheet.getSelectionModel().getSelectedCells()){
              orderedCellNunber = cell.getRow()+"/"+cell.getColumn();
                System.out.println(orderedCellNunber);
             //  System.out.println(((String []) (container.get(cell.getRow()).get(cell.getColumn()).getItem()))[0]);
                System.out.println(container.get(cell.getRow()).get(cell.getColumn()).getItem().toString());
            }
        }
    });


    spreadSheet.getSelectionModel().setSelectionMode(SelectionMode.SINGLE);
    spreadSheet.setGrid(grid);
}