CODEWITHSUNDEEP
javafxtableviewtablecolumn
ilyesky
ilyesky

Reputation: 13

display two decimal places of a float in a TableView JavaFx

So basically I'm developing this Javafx app following the DAO pattern... and I want the floats to have that .00 end instead of .0 (to represents the balance.. money ) balance records in tableview with .0

here's how I initialized the tableview components 

idC.setCellValueFactory(cellData -> cellData.getValue().idProperty().asObject());
balanceC.setCellValueFactory(cellData -> cellData.getValue().balanceProperty().asObject());
dateC.setCellValueFactory(cellData -> cellData.getValue().dateProperty());
timeC.setCellValueFactory(cellData -> cellData.getValue().timeProperty());

Upvotes: 1

Views: 1496

Answers (2)

GaRzY
GaRzY

Reputation: 85

CellFactory isn't needed if you don't want to add more unnecessary code.

First, change your TableColumn<XXX,Double> balanceC to TableColumn<XXX,String> balanceC

Then change your cell value factory to:

balanceC.setCellValueFactory(cellData -> cellData.getValue().balanceProperty().asString("%.2f"));

Easy and cleaner way IMO.

Personally, I write custom CellFactory when I need more complex cells, for example: mixing images and other nodes inside the cell.

Upvotes: -1

James_D
James_D

Reputation: 209684

Use a cellFactory in addition to your cellValueFactory (I'm assuming balanceC is a TableColumn<T, Double> for some type T:

balanceC.setCellFactory(c -> new TableCell<>() {
    @Override
    protected void updateItem(Double balance, boolean empty) {
        super.updateItem(balance, empty);
        if (balance == null || empty) {
            setText(null);
        } else {
            setText(String.format("%.2f", balance.doubleValue());
        }
    }
});

You can add currency symbols and use more sophisticated formatting if needed.

Upvotes: 2

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