使用AbstractTableModel更改特定单元格的单元格编辑器 [英] Change Cell Editor for specific Cells with AbstractTableModel

问题描述

我在我的应用程序中为JTable编写了AbstractTableModel.从教程中可以看出，我可以通过获取列模型，然后获取特定的列，使该列具有组合框，例如:

I have a written an AbstractTableModel for my JTable in my application. I see from tutorials that I can make the column to have a combobox by getting the column model and then the specific column for example:

TableColumn sportColumn = table.getColumnModel().getColumn(2);
...
JComboBox comboBox = new JComboBox();
comboBox.addItem("Snowboarding");
comboBox.addItem("Rowing");
comboBox.addItem("Chasing toddlers");
comboBox.addItem("Speed reading");
comboBox.addItem("Teaching high school");
comboBox.addItem("None");
sportColumn.setCellEditor(new DefaultCellEditor(comboBox));

但是如何针对特定的单元格或行执行此操作?

But how do I do this for a specific cell or a row?

推荐答案

JTable的默认实现是基于列的.如果要具有基于行或单单元格的选择，则更改该行为的唯一方法是创建JTable的子类并覆盖方法public TableCellEditor getCellEditor(int row, int column).在实现内部，您可以使用提供的行索引和列索引做出不同的选择. JTable将始终使用此方法来获取单元格编辑器.

The JTable’s default implementation is column-based. The only way to change that behavior, if you want to have row or single-cell based choices, is to create a subclass of JTable and override the method public TableCellEditor getCellEditor(int row, int column). Inside your implementation you can use the provided row and column indices to make a different choice. The JTable will always use this method to get the cell editor.

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