问题将节点添加到树视图 [英] Problem with adding nodes to a treeview

问题描述

当我试图从一个树视图复制到另一个节点，我得到了一个奇怪的错误：不能添加或插入在多个地方的项目节点1，您必须首先从当前位置删除或克隆它
参数名：节点
搜索一段时间后，我找不到任何解决方案。我在VB.NET尝试这样做，有同样的错误
码例如：

When I was trying to copy node from one treeview to another, I got a strange error: "Cannot add or insert the item 'node1' in more than one place. You must first remove it from its current location or clone it. Parameter name: node" After searching for a while, I couldn't find any solution. I tried this in VB.NET and had the same error Code example:

TreeNode node1 = new TreeNode("node1");
node1.Name = "node1";
treeView1.Nodes.Add(node1);
TreeNode nd = treeView1.Nodes[0];
treeView2.Nodes.Add(nd);

有没有这方面的任何解决方案？

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谢谢大家！这工作了！

Are there any solutions for this?

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Thanks everyone! This works now!

推荐答案

是，使用深层副本

TreeNode nd = (TreeNode )treeView1.Nodes[0].Clone();

你的代码改成这样

change your code to this

TreeNode node1 = new TreeNode("node1");
node1.Name = "node1";
treeView1.Nodes.Add(node1);
TreeNode nd = (TreeNode )treeView1.Nodes[0].Clone(); // clone the object
treeView2.Nodes.Add(nd);

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