禁用后仍然可以从JComboBox中选择

Im在设置JComboBox时遇到问题。用户在一个separte面板上有几个选项可以确定JComboBox是否应该被启用/禁用 - 我遇到的问题是用户仍然可以从JComboBox中选择，即使它被禁用（由于组合框被禁用，它被禁用）！ JComboBox使用自定义TableCellRenderer和自定义DefaultCellEditor。此外，JComboBox是一行JTable中的单元格/列。禁用后仍然可以从JComboBox中选择

所以这里是代码的崩溃：

*prepareRenderer JTable中*

public Component prepareRenderer(TableCellRenderer renderer, int row, int column) { 
    JComponent component = (JComponent) super.prepareRenderer(renderer, row, column); 
     //Code which checks to see if component should be enabled 
     enableComponent = false; 
     component.setEnabled(enableComponent); 
    }

*设置组合框的*

public void setupUserCombo(){ 

     TableColumn col = getColumnModel().getColumn(0); 
      List<String> comboUsers = new String["Adam", "Ben"] 

    MyComboBoxRenderer jComboBox = (new MyComboBoxRenderer((String[])values.toArray(comboUsers)); 
    col.setCellEditor(new MyComboBoxEditor((String[])values.toArray(new String[0]))); 
    col.setCellRenderer(jComboBox); 

    repaint(); 
}

* *的TableCellRenderer

public class MyComboBoxRenderer extends JComboBox implements TableCellRenderer { 
    private static final long serialVersionUID = 1L; 

    public MyComboBoxRenderer(String[] items) { 
     super(items); 
     repaint(); 
    } 

    public Component getTableCellRendererComponent(JTable table, Object value, 
      boolean isSelected, boolean hasFocus, int row, int column) { 
     setSelectedItem(""); 

     if (isSelected) { 
      super.setBackground(table.getSelectionBackground()); 
     } else { 
      setForeground(table.getForeground()); 
      setBackground(table.getBackground()); 
     } 

     setSelectedItem(value); 

     return this; 
    } 

}

* DefaultCellEditor *

public class MyComboBoxEditor extends DefaultCellEditor { 
     private static final long serialVersionUID = 1L; 

    public MyComboBoxEditor(String[] items) { 
     super(new JComboBox(items)); 
    } 
}

任何指针，以什么即时做错了将不胜感激！

感谢，

来源

2012-10-30 maloney

如果要禁用表中的一个单元的版本，你应该重写TableModel.isCellEditable(int,int)

这里，所有你做的是使一个残疾人的JComboBox但这并不妨碍版，它只是呈现一个残疾的JComboBox 。另见http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#editrender

来源

2012-10-30 11:24:30

非常好 - 感谢您的帮助！问题是我已经在模型中覆盖该方法，以便在选择组合框时始终返回true。现在修复只在其启用时才返回true。 – maloney

看到JTable tutorial约Using a Combo Box as an Editor
view by @aterai
不存储JComponents在XxxTableModel，然后持续从JComboBox选择的值存储在XxxTableModel为String value

来源

2012-10-30 11:21:41 mKorbel

禁用后仍然可以从JComboBox中选择

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