树形结构的实现，可以添加子树并且检查是否重复-Implementation of tree

Microsoft s Windows Presentation Foundation (WPF) provides the facility to host Windows Forms controls within a WPF application. This sample demonstrates how to host the ArcGIS Engine Map control, Toolbar control, and TOC control on a WPF window by u

vc + markup 操作xml，实现都xml的增删改查等功能，方面初学者-Vc+ markup operation XML, implementation of XML add deletion function such as check in, beginners