将所有treeView父级和子级复制到另一个treeView c＃WinForms

我试图使用以下代码将树视图（完全）的整个树（完全所有节点）复制到另一个树视图：

TreeNodeCollection myTreeNodeCollection = treeView1.Nodes; TreeNode[] myTreeNodeArray = new TreeNode[treeView1.Nodes.Count]; treeView1.Nodes.CopyTo(myTreeNodeArray, 0); treeView2.Nodes.AddRange(myTreeNodeArray); 

但这不允许我这样做，它要求删除源treeview中的节点或使用它克隆！ 我怎样才能做到这一点？ 我不希望我的源treeview在这个过程中丢失任何东西。

**更新**好的我发现了一个复杂的代码（对我来说!!）但我怎么能用它？

  public static T DeepTreeCopy(T obj) { object result = null; using (var ms = new MemoryStream()) { var formatter = new BinaryFormatter(); formatter.Serialize(ms, obj); ms.Position = 0; result = (T)formatter.Deserialize(ms); ms.Close(); } return (T)result; } 

Answer 1

试试这个

 public void Copy(TreeView treeview1, TreeView treeview2) { TreeNode newTn; foreach (TreeNode tn in treeview1.Nodes) { newTn = new TreeNode(tn.Text, tn.Value); CopyChilds(newTn, tn); treeview2.Nodes.Add(newTn); } } public void CopyChilds(TreeNode parent, TreeNode willCopied) { TreeNode newTn; foreach (TreeNode tn in willCopied.ChildNodes) { newTn = new TreeNode(tn.Text, tn.Value); parent.ChildNodes.Add(newTn); } } 

致以我的问候

Answer 2

像MohD的答案，但用递归来获取所有节点。 （子节点的节点）

  public void CopyTreeNodes(TreeView treeview1, TreeView treeview2) { TreeNode newTn; foreach (TreeNode tn in treeview1.Nodes) { newTn = new TreeNode(tn.Text, tn.ImageIndex, tn.SelectedImageIndex); CopyChildren(newTn, tn); treeview2.Nodes.Add(newTn); } } public void CopyChildren(TreeNode parent, TreeNode original) { TreeNode newTn; foreach (TreeNode tn in original.Nodes) { newTn = new TreeNode(tn.Text, tn.ImageIndex, tn.SelectedImageIndex); parent.Nodes.Add(newTn); CopyChildren(newTn, tn); } } 

Answer 3

使用node.Clone（）函数也可以…

 foreach (TreeNode node in treeViewSource.Nodes) { treeViewTarget.Nodes.Add((TreeNode)node.Clone()); } 

添加根节点有助于确保“PlusMinus”function可见。

 TreeNode rootNode = new TreeNode("Root Node"); treeViewTarget.Nodes.Add(rootNode); foreach (TreeNode node in treeViewSource.Nodes) { rootNode.Nodes.Add((TreeNode)node.Clone()); } rootNode.Expand(); 

Answer 4

您可以在所需级别使用它

  public void RootCopy(TreeView treeview1, TreeView treeview2) { TreeNode newNode; foreach (TreeNode tnode in treeview1.Nodes) { newNode = new TreeNode(tnode.Text); treeview2.Nodes.Add(newNode); if (tnode.Nodes.Count != 0) { int _1index = tnode.Index; ChildsCopyLevel2(_1index, treeview1, treeview2); } } } public void ChildsCopyLevel2(int index1, TreeView TV1, TreeView TV2) { foreach (TreeNode Tnode in TV1.Nodes[index1].Nodes) { string Childtext = Tnode.Text; TV2.Nodes[index1].Nodes.Add(Childtext); if (Tnode.Nodes.Count != 0) {// ChildsCopyLevel3(Tnode.Nodes.Count, TV1, TV2); int _2index = Tnode.Index; ChildsCopyLevel3(index1, _2index, TV1, TV2); } } } public void ChildsCopyLevel3(int index1, int index2, TreeView TV1, TreeView TV2) { foreach (TreeNode Tnode in TV1.Nodes[index1].Nodes[index2].Nodes) { string Childtext = Tnode.Text; TV2.Nodes[index1].Nodes[index2].Nodes.Add(Childtext); } }