我成功地使表格列可编辑,并在双击单元格时更新值。现在我想要做的是从txt字段获取值并将值设置为所选行的特定单元格(列)。我经历了很多研究,但找不到合适的答案。 Javafx不允许直接编辑表格的值,除非直接编辑单元格并设置其值。
谢谢
这是迄今为止我所做的一个例子。
将cellValueFactory设置为表格列
tblColQuantity.setCellValueFactory(cellData -> cellData.getValue()
.quantityProperty());
tblColQuantity.setCellFactory(col -> new IntegerEditingCell());
tblColRateWithoutvat.setCellValueFactory(cellData -> cellData
.getValue().rateWithoutvatProperty());
tblColRateWithoutvat.setCellFactory(col -> new IntegerEditingCell());
tblColTotalWithvat.setCellValueFactory(cellData -> cellData.getValue().totalWithvatProperty());
tblColTotalWithvat.setCellFactory(col -> new IntegerEditingCell());
帮助我更新单元格数据的Inner类
public class IntegerEditingCell extends TableCell<AddBillTable, Number> {
private final TextField textField = new TextField();
private final Pattern intPattern = Pattern.compile("\\d*\\.\\d+");
// -?\\d+
public IntegerEditingCell() {
textField.focusedProperty().addListener(
(obs, wasFocused, isNowFocused) -> {
if (!isNowFocused) {
processEdit();
}
});
textField.setOnAction(event -> processEdit());
}
private void processEdit() {
String text = textField.getText();
if (intPattern.matcher(text).matches()) {
commitEdit(Float.parseFloat(text));
} else {
cancelEdit();
}
}
@Override
public void updateItem(Number value, boolean empty) {
super.updateItem(value, empty);
if (empty || value.equals(null)) {
setText(null);
setGraphic(null);
} else if (isEditing()) {
setText(null);
textField.setText(value.toString());
setGraphic(textField);
}/*
* else if (!empty){ textField.setText(value.toString()); }
*/else {
// if((!value.toString().equals(null)) || (value==null)){
setText(value.toString());
setGraphic(null);
System.out.println("Updated");
System.out.println(this.textField.getText());
// }
}
}
@Override
public void startEdit() {
super.startEdit();
Number value = getItem();
if (value != null) {
textField.setText(value.toString());
setGraphic(textField);
setText(null);
}
}
@Override
public void cancelEdit() {
super.cancelEdit();
setText(getItem().toString());
setGraphic(null);
}
// This seems necessary to persist the edit on loss of focus; not sure
// why:
@Override
public void commitEdit(Number value) {
super.commitEdit(value);
// ((PurchaseDetail)this.getTableRow().getItem()).setQuantity(value.floatValue());
System.out.println("Commit edit " + value);
detectEditedCell(value);
}
}
答案 0 :(得分:0)
您可以从表中获取所选项,并调用与该列所代表的属性对应的相应set方法。
例如,如果您希望文本字段更新当前所选行的quantity
,则可以执行以下操作:
TextField textField = new TextField();
textField.setOnAction(e -> {
AddBillTable selectedItem = table.getSelectionModel().getSelectedItem();
if (selectedItem != null) {
selectedItem.setQuantity(Integer.parseInt(textField.getText()));
}
});
只要您使用JavaFX可观察属性(AddBillTable
,StringProperty
等)实现模型类(示例中为IntegerProperty
),然后更改属性值将自动更新桌子。