说明： 这是一个树形图表控件，可以用于显示XML文档的数据结构。
On tree diagrams and XML
A control to edit tree structures is described with an emphasis on its XML capabilities and the underlying layout algorithms.
(This a tree chart control can be used to display XML data structure. On tree diagrams and XML A control to edit tree structures is described with an emphasis on its XML capabilities and the underlying layout algorithms.)
文件列表：
TreeDiagrams_demo.zip
TreeDiagrams_src.zip
