System.Web.UI.WebControls.TreeView.GetExpandStates C# (CSharp) Method

		void GetExpandStates (StringBuilder sb, TreeNode node)
		{
			if (node.Expanded.HasValue && node.Expanded.Value) {
				sb.Append (node.Path);
				sb.Append ('|');
			}
			if (node.HasChildData) {
				foreach (TreeNode child in node.ChildNodes)
					GetExpandStates (sb, child);
			}
		}
	}