我有一个JComboBox用作编辑器JTable。在图片中，您可以在标记的列中看到它们Produs。我想使用独立的设计JComboBox在网格单元中，特别是组合框的右侧部分，其中网格单元中缺少三角形，因此用户无需单击其中之一即可知道网格单元是组合框。我如何应用该设计JComboBox (IsBackFlush）到JComboBoxes在网格中？
本质上，我该如何设计comboBox2基于的设计comboBox1？谢谢。
Working from this complete example https://stackoverflow.com/a/7356518/230513 as a common frame of reference, note how the appearance of unselected cells in the ITEM_COL column is due to the default renderer http://docs.oracle.com/javase/tutorial/uiswing/components/table.html#editrender. The arrow button typical of a stand-alone JComboBox only appears when the cell's editor is evoked, as by clicking on the cell or pressing Space when the cell is selected. You can add a triangle in a custom renderer:
final JComboBox combo = new JComboBox(items);
TableColumn col = table.getColumnModel().getColumn(ITEM_COL);
col.setCellRenderer(new DefaultTableCellRenderer(){
@Override
public Component getTableCellRendererComponent(JTable table, Object value,
boolean isSelected, boolean hasFocus, int row, int column) {
JLabel label = (JLabel) super.getTableCellRendererComponent(table,
value, isSelected, hasFocus, row, column);
label.setIcon(UIManager.getIcon("Table.descendingSortIcon"));
return label;
}
});
附录：@aterai 提供了一个更完整的示例here https://stackoverflow.com/a/12844115/230513.
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