java 如何使用自定义 TableModel 删除 JTable 中的一行
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HowTo Remove a Row in a JTable with a Custom TableModel
提问by linsek
I've been reading posts similar to mine, and reading through the Java tutorial pagebut I just can't seem to get this working. I'm not sure if I'm missing something fundamental or not...
我一直在阅读与我类似的帖子，并通读Java 教程页面，但我似乎无法使其正常工作。我不确定我是否遗漏了一些基本的东西......
I have a custom table model below that I need to be able to delete rows from. The table is initialized empty and rows are added through a combo box and an add button. There is also a delete button that needs to delete the selected row out of the table.
我在下面有一个自定义表模型，我需要能够从中删除行。该表初始化为空，并通过组合框和添加按钮添加行。还有一个删除按钮，需要将选中的行从表中删除。
class TableModel extends AbstractTableModel
{
private String[] columnNames = {"Enabled", "Value" };
protected Class[] columnClasses = new Class[] { Boolean.class, String.class };
public int getColumnCount() { return columnNames.length; }
public int getRowCount() { return filters.size(); }
public String getColumnName(int col) { return columnNames[col]; }
public Class getColumnClass(int col) { return columnClasses[col]; }
public Object getValueAt(int row, int col) { ... }
public void setValueAt(Object value, int row, int col) { ... }
public void addRow(String value)
{
fireTableRowsInserted(filters.size() - 1, filters.size() - 1);
int row = filters.size() -1 ;
int col = 1;
setValueAt(value, row, col);
}
public void removeRow(int row)
{
fireTableRowsDeleted(selectedRow, selectedRow);
}
}
I have confirmed that selectedRowcontains the correct row through prints in the console. The fireTableRowsDeletedfunction just doesn't do anything. The row still exists. How do you just delete a specific row?
我已经selectedRow通过控制台中的打印确认包含正确的行。该fireTableRowsDeleted功能只是不做任何事情。该行仍然存在。你如何只删除特定的行？
Thanks,
谢谢，
回答by vickirk
The call to fireTableRowsDeletedsimply fires off the event to indicate rows have been deleted, you still need to actually remove them from the model.
调用fireTableRowsDeleted只是触发事件以指示行已被删除，您仍然需要从模型中实际删除它们。
回答by linsek
Immediately after I posted this I figured it out.
在我发布此信息后，我立即想通了。
The rows contents are based on a List of filters:
行内容基于过滤器列表：
public int getRowCount() { return filters.size(); }
My problem was I was trying to delete a row without removing that from the list. So I modified removeRow()to be the following:
我的问题是我试图删除一行而不从列表中删除它。所以我修改removeRow()如下：
public void removeRow(int row)
{
filters.remove(row);
fireTableRowsDeleted(row, row);
}
And it works like a charm.
它就像一个魅力。
cheers
干杯
回答by user1138042
I think this is the answer:
我想这就是答案：
final int row = selectedRow;
EventQueue.invokeLater(new Runnable() {
public void run() {
model.removeRow(row);
}
});
The row will be deleted when the editing is finished.
编辑完成后，该行将被删除。
