英文:
CellEditorListener calls the getCellEditorValue method when focusgained for a column in jtable
问题
我有一个用于将编辑过的值存储到数据库中的方法。
public Object getCellEditorValue() {
String outputToCell = ((JTextField) component).getText();
panelsign.updateAllergicReactions(outputToCell, row);
return outputToCell;
}
这个方法是被 JTable.class 中的以下方法调用（预定义的 Java 类）。
/**
* 在编辑完成时调用。更改将被保存，编辑器将被丢弃。
* <p>
* 应用程序代码不会显式使用这些方法，它们在 JTable 内部使用。
*
* @param e 接收到的事件
* @see CellEditorListener
*/
public void editingStopped(ChangeEvent e) {
// 接收新值
TableCellEditor editor = getCellEditor();
if (editor != null) {
Object value = editor.getCellEditorValue();
setValueAt(value, editingRow, editingColumn);
removeEditor();
}
}
如果我只是在 JTable 中点击行，就会调用第一个提到的方法。但是我希望在我完成编辑后再调用它。或者在编辑后导航到下一列来编辑下一个列时再调用它。
英文:
I have a method that is used to store the edited values in the DB.
public Object getCellEditorValue() {
String outputToCell = ((JTextField) component).getText();
panelsign.updateAllergicReactions(outputToCell, row);
return outputToCell;
}
This method is called by this method in JTable.class(pre-defined java class).
/**
* Invoked when editing is finished. The changes are saved and the
* editor is discarded.
* <p>
* Application code will not use these methods explicitly, they
* are used internally by JTable.
*
* @param e the event received
* @see CellEditorListener
*/
public void editingStopped(ChangeEvent e) {
// Take in the new value
TableCellEditor editor = getCellEditor();
if (editor != null) {
Object value = editor.getCellEditorValue();
setValueAt(value, editingRow, editingColumn);
removeEditor();
}
}
The first mentioned method is called if I just click the row in the JTable. But I want it to be called after I complete editing it. Or like after editing it and then navigate to next column to edit that one.
答案1
得分: 2
你不应该在单元格编辑器中进行操作。
如果你想知道何时在TableModel中更改了数据，可以选择以下方式之一：
- 覆盖你的TableModel的
setValueAt(...)方法以更新数据库，或者 - 向TableModel添加一个
TableModelListener。每当对TableModel进行更新时，都会生成一个事件。
英文:
You should not be playing with the cell editor.
If you want to know when data have been changed in the TableModel you can either:
- Override the
setValueAt(...)method of your TableModel to update the database, or - Add a
TableModelListenerto theTableModel. An event will be generated whenever updates to the TableModel are made.
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