在使用setRowSelectionInterval(int, int)后，不能通过箭头键来导航JTable

I'm extending JTable and I have a populateData() method that I'm using to load data into the table model. In this method I'm using:

我正在扩展JTable，并且有一个populateData()方法，我使用它将数据加载到表模型中。在这个方法中，我使用:

setRowSelectionInterval(tableRow, tableRow);

And it is working as I want it to, which is to highlight the first row. But there is one problem: I cannot move the selection to the next row by the down arrow key. I have to click on any row (even the one that is highlighted) with the mouse to be able to navigate by the arrow keys.

它是我想要的，它是为了突出第一行。但是有一个问题:我不能通过向下箭头键将选择移动到下一行。我必须点击任何一行(即使是高亮显示的行)，鼠标也可以通过箭头键来导航。

void populateData(Collection<Book> b) {
   myModel.populateData(b);
   if (myModel.getRowCount() > 0) {
      setRowSelectionInterval(0, 0);
   }
}

Note: I'm enabling only row selections. Column and cell selections are disabled.

注意:我只启用行选择。列和单元格选择被禁用。

Any ideas how to fix this?

有什么办法解决这个问题吗?

Thanks in advance.

提前谢谢。

1 个解决方案

#1

I would guess focus in not on the table so it doesn't react to key presses. You may need to add:

我猜，焦点不在桌子上，所以它不会对按键反应。你可能需要补充:

table.requestFocusInWindow();

If this doesn't work the instead of setRowSelectionInterval(...) try using:

如果这不能工作，而不是setRowSelectionInterval(…)尝试使用:

table.changeSelection(0, 0, false, false);

#1