摘要：
MVVM examplehttp://msdn.microsoft.com/en-us/magazine/dd419663.aspxDrag and DropGong solution to drop and drop for WPF compatible with MVVM architecturehttp://www.codeproject.com/Articles/43702/Drag-and-Drop-in-WPF-Part-IITreeView TopicsHow to get TreeViewItem from HierarchicalDataTemplate item?http: 阅读全文
