How to set and get JavaFX table cell value as swing JTable

Question

I am new to JavaFX and would like to know how to set and get the value of a JavaFX Table cell, like Swing JTable . i.e. an alternative to setValueAt() and getValueAt of Swing JTable in a JavaFX table.

 //would like to get the index of column by Name int index_RunnableQueueItem = tableQueue.getColumns().indexOf("RunnableQueueItem"); //would like to get the selected row int row = tableQueue.getSelectionModel().getSelectedIndex(); if (index_RunnableQueueItem != -1 && row != -1) { // would like to get the value at index of row and column. //Update that value and set back to cell. } 

Answer 1

TableView does not really support this methodology.

Here is a somewhat fragile means of doing what you want using reflection. It totally depends on the use of PropertyValueFactory in your factory cell value, so it can look up the name of the property.

 class MyItem { SimpleStringProperty nameProperty = new SimpleStringProperty("name"); public MyItem(String name) { nameProperty.set(name); } public String getName() { return nameProperty.get(); } public void setName(String name) { nameProperty.set(name); } public SimpleStringProperty getNameProperty() { return nameProperty; } } ... TableView<MyItem> t = new TableView<MyItem>(); TableColumn col = new TableColumn("Name Header"); col.setCellValueFactory(new PropertyValueFactory<MyItem, String>("name")); t.getColumns().addAll(t); ... public void setValue(int row, int col, Object val) { final MyItem selectedRow = t.getItems().get(row); final TableColumn<MyItem,?> selectedColumn = t.getColumns().get(col); // Lookup the propery name for this column final String propertyName = ((PropertyValueFactory)selectedColumn.getCellValueFactory()).getProperty(); try { // Use reflection to get the property final Field f = MyItem.class.getField(propertyName); final Object o = f.get(selectedRow); // Modify the value based on the type of property if (o instanceof SimpleStringProperty) { ((SimpleStringProperty)o).setValue(val.toString()); } else if (o instanceof SimpleIntegerProperty) { ... } } catch (Exception ex) { ex.printStackTrace(); } } 

Answer 2

Getting a simple value from a JavaView tableview cell

You can use listeners as indicated in other posts, but if you want to get a simple value from a cell, you can use a simpler method

 Example: // Get the row index where your value is stored int rowIndex = tableView.getSelectionModel().getSelectedIndex(); // Since you can't get the value directly from the table like the // getValueAt method in JTable, you need to retrieve the entire row in // FXCollections ObservableList object ObservableList rowList = (ObservableList) tableViewModelos.getItems().get(rowIndex); // Now you have an ObservableList object where you can retrieve any value // you have stored using the columnIndex you now your value is, starting // indexes at 0; // In my case, I want to retrieve the first value corresponding to the first column //index, and I know it is an Integer Value so I'll cast the object. int columnIndex = 0; int value = Integer.parseInt(rowList.get(columnIndex).toString()); 

Hope this example helps you.