可以拖拽节点的树，也允许拖拽节点到其他树上-Can drag the tree of nodes, and also allows dragging node to other trees

该样例演示了拆分视图界面的实现方法,在一个界面上同时显示列表视图,树形视图,FORM视图,普通绘图视图等,并且可以灵活地通过鼠标拖拉而改变视图大小.-This sample demonstrates the split view interface implementation method, the interface also shows in a list view, tree view, FORM view, such general views of the drawing, and

节点拖拽功能实现，通过拖拽节点达到节点移动的效果-The node drop functionality achieved by dragging the nodes to achieve the effect of node mobility