java JavaFX：TableView：获取选定的行单元格值
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JavaFX: TableView: get selected row cell values
提问by DeluxeD
I'm working on a project where the TableView looks like this:
我正在做一个 TableView 看起来像这样的项目：
The datas are inside are a MySQL database, and I use a modell and an observableArrayList to get them.
里面的数据是一个 MySQL 数据库，我使用一个模型和一个 observableArrayList 来获取它们。
I want to make an initializemethod which read the whole selected Line and save it into the TextFields (like Name-Name, Address - Address etc). I tried with this, and now I can Select the Whole Line data, but can't split it into Strings to set the TextField texts:
我想创建一个初始化方法，它读取整个选定的行并将其保存到文本字段中（如名称-名称、地址-地址等）。我试过了，现在我可以选择整行数据，但不能将其拆分为字符串来设置 TextField 文本：
ListViewerModell details = (ListViewerModell) table.getSelectionModel().getSelectedItem();
//Checking if any row selected
if (details != null) {
//??? - split
editName.setText("*Name*");
editAddress.setText("*Address*");
}
Tried with the modell getName(), getAdress() methods but I got NullPointerException and TablePos methods.
尝试使用模型 getName()、getAdress() 方法，但我得到了 NullPointerException 和 TablePos 方法。
回答by CemIkta
// create table
TableView<Person> table = new TableView<Person>();
// create columns
TableColumn<Person, String> nameCol = new TableColumn<Person, String>("Name");
nameCol.setCellValueFactory(new PropertyValueFactory("name"));
TableColumn<Person, Address> addressCol = new TableColumn<Person, String>("Address");
addressCol.setCellValueFactory(new PropertyValueFactory("address"));
// add columns
table.getColumns().setAll(nameCol, addressCol);
// get data from db, return object List<Person> from DB
ObservableList<Person> persons = getPersonsFromDB();
table.setItems(persons);
tableView.setOnMouseClicked((MouseEvent event) -> {
if (event.getClickCount() > 1) {
onEdit();
}
});
public void onEdit() {
// check the table's selected item and get selected item
if (table.getSelectionModel().getSelectedItem() != null) {
Person selectedPerson = table.getSelectionModel().getSelectedItem();
nameTextField.setText(selectedPerson.getName());
addressTextField.setText(selectedPerson.getAddress());
}
}
回答by rainer
One way could be extracting the value of the columns of the selected row, like so :
一种方法是提取所选行的列的值，如下所示：
Object selectedItems = table.getSelectionModel().getSelectedItems().get(0);
String first_Column = selectedItems.toString().split(",")[0].substring(1);
System.out.println(first_Column);
