TreeView 控件 TreeView 控件用来显示目录树结构分级视图，如同 Windows中显示的文件和目录。TreeView 控件中的各项信息都有一个与之相关联的Node对象。每个 Node 对象均由一个 Label 对象和其相关的位图组成。建立TreeView 控件后，我们可以展开和折叠、访问其中的节点。 要在 TreeView 控件中使用图标，必须通过 ImageList 控件并用代码与其关联起来，方法是设置 TreeView 控件ImageImageList属性。 语句如下： This.ImageList=Thisform.Images 其中 Thisform.Images 为 ImageList 控件的对象名 在以下介绍中我们所见到的object.指的是 表单.TreeView 名.的引用 索引号：Tree控件中的对象是用索引号(index属性)来确定的，比如有一个节点和一个子节点，那么节点的索引号为1，子节点的索引号为2。Tree的索引号是会变的，如有两个节点并各有一子节点 - 节点1（索引号1） 子节点（索引号2） -节点2（3） 子节点（4） 如果在节点1或其子节点中添加一个子节点的话，那么节点2的索引将变为4，其子节点为5

玩转TreeView\DATA\main.dbc
............\....\main.DCT
............\....\main.DCX
............\....\show.BAK
............\....\show.dbf
............\....\show.FPT
............\....\show.TBK
............\DATA
............\FORMS\main.SCT
............\.....\main.scx
............\FORMS
............\PIC\1.ico
............\...\2.ico
............\...\3.ico
............\...\4.ico
............\...\5.ico
............\...\6.ico
............\...\7.ico
............\...\8.ico
............\PIC
............\Tree.PJT
............\Tree.pjx
玩转TreeView

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