Copy all treeView parent and children to another treeView c# WinForms

Question

I am trying to copy the entire tree (exactly all nodes) of a treeview (completely) to another treeview using this code:

        TreeNodeCollection myTreeNode         


        

Answer 1

Using the node.Clone() function works as well...

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

Adding a root node will help ensure the "PlusMinus" functionality is viewable.

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