CODEWITHSUNDEEP
javajavafx
Chris Smith
Chris Smith

Reputation: 3012

How to sort a TableView programmatically?

I want a certain column of a TableView to be sorted by default. How would I do this? I tried doing column.setSortType(SortType.ASCENDING);, as well as putting it in a runLater call. I looked at the JavaDocs and stuff and all I can see that may be of interest is the peculiar setSortPolicy method.

Upvotes: 6

Views: 10921

Answers (2)

Martin Pfeffer
Martin Pfeffer

Reputation: 12627

Called at the end of the table initialisation... 

colChecked.setSortType(TreeTableColumn.SortType.DESCENDING);
colDate.setSortType(TreeTableColumn.SortType.DESCENDING);
treeView.getSortOrder().setAll(colChecked, colDate);

Upvotes: 2

James_D
James_D

Reputation: 209225

To perform a "one-off" sort, call

tableView.getSortOrder().setAll(...);

passing in the TableColumn(s) by which you want the data sorted.

To make the sort persist even as the items in the list change, create a SortedList and pass it to the table's setItems(...) method. (To change the items, you will still manipulate the underlying list.)

As an example, using the usual contact table example you could do:

TableView<Person> table = new TableView<>();
TableColumn<Person, String> firstNameCol = new TableColumn<>("First Name");
firstNameCol.setCellValueFactory(cellData -> cellData.getValue().firstNameProperty());
TableColumn<Person, String> lastNameCol = new TableColumn<>("
Last Name");
firstNameCol.setCellValueFactory(cellData -> cellData.getValue().lastNameProperty());

ObservableList<Person> data = FXCollections.observableArrayList();

SortedList<Person> sortedData = new SortedList<>(data);

// this ensures the sortedData is sorted according to the sort columns in the table:
sortedData.comparatorProperty().bind(table.comparatorProperty());

table.setItems(sortedData);

// programmatically set a sort column:
table.getSortOrder().addAll(firstNameCol);

// note that you should always manipulate the underlying list, not the sortedList:
data.addAll(new Person(...), new Person(...));

Upvotes: 14

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