如何从嵌套 XUL 树中删除项目？

发布于 2024-09-24 17:14:39 字数 444 浏览 0 评论 0原文

我使用 XUL 创建了一个嵌套树（没有使用数据库来存储项目）。我想通过选择项目（一次仅 1 个）然后单击“删除”来从该树中删除项目。我编写了 Javascript 函数来删除，如下所示，但它不起作用。

function delete(){
  var tree = document.getElementById("treeId");    
  currentPos = tree.currentIndex;    
  var currentItem = tree.contentView.getItemAtIndex(currentPos);
  var parent = currentItem.getParent();
  parent.removeChild(currentItem);
}

我猜 getParent() 不是正确的方法，但没有找到任何其他方法。有人可以给我一些提示吗？谢谢

原文

I created a nested tree using XUL (no database was used to store items). I want to delete items from this tree by selecting the item (only 1 at a time) then click delete. I wrote Javascript function to delete as following but it does not work.

function delete(){
  var tree = document.getElementById("treeId");    
  currentPos = tree.currentIndex;    
  var currentItem = tree.contentView.getItemAtIndex(currentPos);
  var parent = currentItem.getParent();
  parent.removeChild(currentItem);
}

I guess getParent() is not the right method but did not find any other method. Can someone give me some hints please.
Thanks

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