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TableColumn<Event,Date> releaseTime = new TableColumn<>("Release Time");
releaseTime.setCellValueFactory(
new PropertyValueFactory<Event,Date>("releaseTime")
);
How can I change the format of releaseTime? At the moment it calls a simple toString on the Date object.
913
The TableView class provides built-in capabilities to sort data in columns. Users can alter the order of data by clicking column headers. The first click enables the ascending sorting order, the second click enables descending sorting order, and the third click disables sorting. By default, no sorting is applied.
The JavaFX TableView enables you to sort the rows in the TableView. There are two ways rows can be sorted. The first way is for the user to click on the TableColumn header cell (where the column title is displayed). This will sort the rows in the TableView after the values of that column.
Cell Value Factory : it is like a "toString()" of only part of the row item for that related cell. Cell Factory : it is a renderer of the cell from the cell item. Default behavior is setText(cell. item. toString()) if the cell item is not a Node , setGraphic((Node)cell.
I'd recommend using Java generics to create re-usable column formatter that takes any java.text.Format. This cuts down on the amount of boilerplate code...
private class ColumnFormatter<S, T> implements Callback<TableColumn<S, T>, TableCell<S, T>> {
private Format format;
public ColumnFormatter(Format format) {
super();
this.format = format;
}
@Override
public TableCell<S, T> call(TableColumn<S, T> arg0) {
return new TableCell<S, T>() {
@Override
protected void updateItem(T item, boolean empty) {
super.updateItem(item, empty);
if (item == null || empty) {
setGraphic(null);
} else {
setGraphic(new Label(format.format(item)));
}
}
};
}
}
Examples of usage
birthday.setCellFactory(new ColumnFormatter<Person, Date>(new SimpleDateFormat("dd MMM YYYY")));
amplitude.setCellFactory(new ColumnFormatter<Levels, Double>(new DecimalFormat("0.0dB")));
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