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

时间:2011-04-11 10:08:36

标签: c# treeview copy clone

我正在尝试使用以下代码将树视图(完全)的整个树(完全是所有节点)复制到另一个树视图中:

        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** 好吧,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>(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;
    } 

4 个答案:

答案 0 :(得分:12)

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);
    }
} 

我的问候

答案 1 :(得分:8)

与MohD的答案一样,但是通过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);
        }
    } 

答案 2 :(得分:5)

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&#34; PlusMinus&#34;功能是可见的。

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

答案 3 :(得分:-1)

您可以在所需级别使用此

     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);
        }
    }