System.Windows.Forms.TreeNode.ExpandAllInternal C# (CSharp) Метод

        internal void ExpandAllInternal()
        {
            expanded = true;
            for (int i = 0; i < Nodes.Count; i++)
            {
                if (Nodes[i].IsExpanded == false)
                {
                    Nodes[i].expanded = true;
                    Nodes[i].ExpandAllInternal();
                }
            }
        }