Dim Reg As Microsoft.Win32.RegistryKey = Microsoft.Win32.Registry.CurrentUser 'HKEY_CURRENT_USER
10多年专注成都网站制作，成都企业网站建设，个人网站制作服务，为大家分享网站制作知识、方案，网站设计流程、步骤,成功服务上千家企业。为您提供网站建设,网站制作,网页设计及定制高端网站建设服务,专注于成都企业网站建设,高端网页制作,对混凝土搅拌站等多个领域，拥有多年的网站设计经验。
Reg.OpenSubKey("\1\2\3\4\5\6\7", True) '在HKEY_CURRENT_USER下新建1\2\3\4\5\6\7的项
希望能对你有所启发和帮助。
给你一段我曾经写的代码，主要是生成TreeView的节点！有什么不懂的地方你就提！
Public Sub InitializeTreeView(ByVal strvXL As TreeView, ByVal vrsRecordTwo As DataSet)
Dim treBaseNodeOne As TreeNode
Dim treBaseNodeTwo As TreeNode
Dim strDWDM As String
m_rsRecordTwo = g_clsSybase.SelectSC_PD_SBCSB1()
'查找供电局信息
g_clsSybase.SelectRS_ZZJG_ZZJGDMB(m_rsRecordOne)
'添加根节点
Do While m_rsRecordOne.Read
strDWDM = m_rsRecordOne.GetString(0) '获取单位代码
treBaseNodeOne = New TreeNode
treBaseNodeOne.Text = m_rsRecordOne.GetString(1).Trim() '获取单位名称
treBaseNodeOne.Name = m_rsRecordOne.GetString(1)
treBaseNodeOne.Tag = ""
strvXL.Nodes.Add(treBaseNodeOne)
'添加树结构第二层
Dim drsTwo() As DataRow
drsTwo = m_rsRecordTwo.Tables(0).Select("SSDW='" strDWDM "' and SC__XLBM is null")
For Each dr As DataRow In drsTwo
treBaseNodeTwo = New TreeNode
treBaseNodeTwo.Text = dr.Item("XLMC").ToString.Trim
treBaseNodeTwo.Name = dr.Item("XLMC")
treBaseNodeTwo.Tag = dr.Item("XLBM")
treBaseNodeOne.Nodes.Add(treBaseNodeTwo)
Next
Loop
m_rsRecordOne.Close()
End Sub
预先准备三个图标文件，用于树型控件中显示磁盘符号和文件夹的图像之用。
1、窗体上添加控件如下：
组合框控件 ComboBox1，树型控件 TreeView1，列表框控件 ListBox1，图像列表控件 ImageList1。
选中TreeView1，设置其ImageList属性为ImageList1。
2、设置属性
选中图像列表控件 ImageList1，在属性窗口里，选中属性Images，单击三个小点按钮，出现图像集合编辑器窗口，单击[添加按钮]，一一把准备好的图标文件进行添加，注意先后次序，如果不符合要求可以通过上下移动按钮重新改变次序。完成后单击[确定]。
运行图如下：
完整代码如下：
Imports System.IO
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'添加系统所有磁盘目录符号
For Each MyDrive As String In Environment.GetLogicalDrives()
ComboBox1.Items.Add(MyDrive)
Next
'显示第一个磁盘符号
ComboBox1.Text = ComboBox1.Items(0)
End Sub
'递归过程添加目录树
Public Sub AddDirectory(ByVal strFatherPath As String, ByVal strPath As String, ByVal nodeFather As TreeNode)
Dim i As Integer
Dim Mynode As New TreeNode
'先添加本目录
Mynode.Text = Strings.Replace(strPath, strFatherPath "\", "", , 1)
'为节点指定未被选中时显示的图标
Mynode.ImageIndex = 1
'为节点指定被选中时显示的图标
Mynode.SelectedImageIndex = 2
nodeFather.Nodes.Add(Mynode)
Application.DoEvents()
Try
Dim str() As String = Directory.GetDirectories(strPath)
'递归遍历该目录的子文件夹
For i = 0 To str.GetUpperBound(0)
AddDirectory(strPath, str(i), Mynode)
Next
Catch ex As Exception
Debug.WriteLine(ex.Message)
End Try
Mynode = Nothing
End Sub
'根据给出的盘符添加目录树
Private Sub AddRootDirectory(ByVal DiscSymbol As String)
Dim Nynode As New TreeNode
'先把磁盘盘符添加到树中
TreeView1.Nodes.Clear()
Nynode.ImageIndex = 0
Nynode.Text = DiscSymbol
Nynode.SelectedImageIndex = -1
TreeView1.Nodes.Add(Nynode)
Dim i As Integer
'获取磁盘根目录下的文件夹
Dim str() As String = Directory.GetDirectories(DiscSymbol "\")
For i = 0 To str.GetUpperBound(0)
'调用递归过程遍历该文件夹里的所有子文件夹，并添加到树型控件
AddDirectory(DiscSymbol, str(i), Nynode)
Next
Nynode = Nothing
End Sub
Private Sub ComboBox1_SelectedIndexChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ComboBox1.SelectedIndexChanged
'根据磁盘符号的变更，显示根目录里的文件
ListBox1.Items.Clear()
For Each MyFile As String In System.IO.Directory.GetFiles(ComboBox1.Text)
ListBox1.Items.Add(MyFile)
Next
'根据磁盘符号的变更，重新显示目录树
Dim DiscSymbol As String
DiscSymbol = Microsoft.VisualBasic.Left(ComboBox1.Text, Len(ComboBox1.Text) - 1)
Call AddRootDirectory(DiscSymbol)
End Sub
'递归过程根据子目录寻找上级目录名--从而构成完整的目录路径
Private Sub AllPath(ByVal ThisNode As TreeNode, ByRef MyPathName As String)
If ThisNode.Level 1 Then
'该节点层数大于1，其父节点不是磁盘根目录
MyPathName = ThisNode.Parent.Text "\" MyPathName
Dim MyNode As TreeNode = ThisNode.Parent
Call AllPath(MyNode, MyPathName)
Else
'该节点层数等于1，其父节点就是磁盘根目录
MyPathName = ComboBox1.Text MyPathName
End If
End Sub
Private Sub TreeView1_AfterSelect(ByVal sender As System.Object, ByVal e As System.Windows.Forms.TreeViewEventArgs) Handles TreeView1.AfterSelect
'为了搜索选中的节点对应目录的文件，需要组成全路径
Dim MyAllPathName As String = TreeView1.SelectedNode.Text
Dim MyNode As TreeNode = TreeView1.SelectedNode
If TreeView1.SelectedNode.Level = 0 Then
'如果选中的是根节点
MyAllPathName = ComboBox1.Text
Else
'如果选中的是非根节点，调用递归过程组成全路径
Call AllPath(MyNode, MyAllPathName)
MyAllPathName = MyAllPathName "\"
End If
'根据路径，搜索文件名并显示
ListBox1.Items.Clear()
For Each MyFile As String In System.IO.Directory.GetFiles(MyAllPathName)
ListBox1.Items.Add(MyFile)
Next
End Sub
End Class
