System.Windows.Forms.TreeNodeCollection.CopyTo C# (CSharp) Method

        public void CopyTo(Array dest, int index)
        {
            if (this.Count > 0)
                Array.Copy(items.ToArray(), 0, dest, index, this.Count);
        }

            /// <include file='doc\ObjectSelectorEditor.uex' path='docs/doc[@for="ObjectSelectorEditor.Selector.SetSelection"]/*' />
            /// <devdoc>
            ///    <para>[To be supplied.]</para>
            /// </devdoc>
            public bool SetSelection(object value, System.Windows.Forms.TreeNodeCollection nodes)
            {
                TreeNode[] treeNodes;

                if (nodes == null)
                {
                    treeNodes = new TreeNode[this.Nodes.Count];
                    this.Nodes.CopyTo(treeNodes, 0);
                }
                else
                {
                    treeNodes = new TreeNode[nodes.Count];
                    nodes.CopyTo(treeNodes, 0);
                }

                int len = treeNodes.Length;

                if (len == 0)
                {
                    return(false);
                }

                for (int i = 0; i < len; i++)
                {
                    if (((SelectorNode)treeNodes[i]).value == value)
                    {
                        SelectedNode = treeNodes[i];
                        return(true);
                    }
                    if ((treeNodes[i].Nodes != null) && (treeNodes[i].Nodes.Count != 0))
                    {
                        treeNodes[i].Expand();
                        if (SetSelection(value, treeNodes[i].Nodes))
                        {
                            return(true);
                        }
                        treeNodes[i].Collapse();
                    }
                }
                return(false);
            }