Javafx 8 Tableview selection with checkbox

Question

I\'ve set up a multiselection enabled tableview and am trying to attach a listener a checkbox inserted into a column to the selection model of the table.

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Answer 1

Ok, so this one way to do it. You'll need a BooleanProperty in your backing model to hold the value of the check box so that the table will 'remember' if that rows check box should be selected or not if the row scrolls out of view and then back again.

TableColumn  checkCol = new TableColumn<>("Check");
checkCol.setCellValueFactory( new PropertyValueFactory( "checkBoxValue" ) );
checkCol.setCellFactory( new Callback, TableCell>()
{
    @Override
    public TableCell call( TableColumn param )
    {
        return new CheckBoxTableCell()
        {
            {
                setAlignment( Pos.CENTER );
            }
            @Override
            public void updateItem( Boolean item, boolean empty )
            {
                if ( ! empty )
                {
                    TableRow  row = getTableRow();

                    if ( row != null )
                    {
                        int rowNo = row.getIndex();
                        TableViewSelectionModel  sm = getTableView().getSelectionModel();

                        if ( item )  sm.select( rowNo );
                        else  sm.clearSelection( rowNo );
                    }
                }

                super.updateItem( item, empty );
            }
        };
    }
} );
checkCol.setEditable( true );
checkCol.setMaxWidth( 50 );
checkCol.setMinWidth( 50 );