JSpinner 更新
我创建一个数据表和单元格编辑器形成一列。本专栏是简单的jSpinner。我有以下问题。当我在微调器中输入某个值并选择另一行时，前一行中的值不会更改。如果我按 ，就完成了。如果我选择 或 按钮，它也会完成。但如果我输入值并更改选择，则不会完成。请帮忙。这是 CellEditor 代码。
public class DurationTableCellEditor extends AbstractCellEditor implements TableCellEditor{
final JSpinner spinner = new JSpinner();
// Initializes the spinner.
public DurationTableCellEditor() {
spinner.setModel(new SpinnerNumberModel(1,1,50000,1));
}
// Prepares the spinner component and returns it.
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
spinner.setValue(new Integer(value.toString()).intValue());
spinner.setCursor(null);
return spinner;
}
// Enables the editor only for double-clicks.
@Override
public boolean isCellEditable(EventObject evt) {
if (evt instanceof MouseEvent) {
return ((MouseEvent)evt).getClickCount() >= 1;
}
return true;
}
// Returns the spinners current value.
public Object getCellEditorValue() {
return spinner.getValue();
}
}
I creates a dataTable and cellEditor form one column. This column is simple jSpinner. I have the following problem. When I enter some value in the spinner and select the another row, the value in the previous row won't be changed. If I press , it'll done. If I select or button, it will done too. But if I enter value and change selection, it won't be done. Help, please. Here is the CellEditor code.
public class DurationTableCellEditor extends AbstractCellEditor implements TableCellEditor{
final JSpinner spinner = new JSpinner();
// Initializes the spinner.
public DurationTableCellEditor() {
spinner.setModel(new SpinnerNumberModel(1,1,50000,1));
}
// Prepares the spinner component and returns it.
public Component getTableCellEditorComponent(JTable table, Object value,
boolean isSelected, int row, int column) {
spinner.setValue(new Integer(value.toString()).intValue());
spinner.setCursor(null);
return spinner;
}
// Enables the editor only for double-clicks.
@Override
public boolean isCellEditable(EventObject evt) {
if (evt instanceof MouseEvent) {
return ((MouseEvent)evt).getClickCount() >= 1;
}
return true;
}
// Returns the spinners current value.
public Object getCellEditorValue() {
return spinner.getValue();
}
}
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目前尚不清楚如何更新数据模型，但一种方法是在
CellEditor中实现ChangeListener，就像 示例 实现ItemListener。有关参考，请参阅如何使用表：使用其他编辑器。特别是看看fireEditingStopped()。最后，您需要一个相应的TableCellRenderer。It's not clear how you're updating your data model, but one approach would be to implement
ChangeListenerin yourCellEditor, much as this example implementsItemListener. For reference, see How to Use Tables: Using Other Editors. In particular, look atfireEditingStopped(). Finally, you'll need a correspondingTableCellRenderer.执行
commitEdit()do
commitEdit()