一段用来读取XML文件信息的VB代码
使用了递归方式
VB.net代码如下：
Imports
System.xml
Public
Class Form1
Inherits System.Windows.Forms.Form#Region " Windows 窗体设计器生成的代码 "
Public Sub New() MyBase.New() '该调用是 Windows 窗体设计器所必需的。 InitializeComponent() '在 InitializeComponent() 调用之后添加任何初始化
End Sub '窗体重写 dispose 以清理组件列表。 Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub 'Windows 窗体设计器所必需的 Private components As System.ComponentModel.IContainer '注意: 以下过程是 Windows 窗体设计器所必需的 '可以使用 Windows 窗体设计器修改此过程。 '不要使用代码编辑器修改它。 Friend WithEvents input As System.Windows.Forms.TextBox Friend WithEvents outtext As System.Windows.Forms.TextBox Friend WithEvents Button1 As System.Windows.Forms.Button <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent() Me.input = New System.Windows.Forms.TextBox Me.outtext = New System.Windows.Forms.TextBox Me.Button1 = New System.Windows.Forms.Button Me.SuspendLayout() ' 'input ' Me.input.Location = New System.Drawing.Point(16, 8) Me.input.Name = "input" Me.input.Size = New System.Drawing.Size(464, 21) Me.input.TabIndex = 0 Me.input.Text = "http://127.0.0.1/fileup/people.xml" ' 'outtext ' Me.outtext.BackColor = System.Drawing.SystemColors.HighlightText Me.outtext.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle Me.outtext.Location = New System.Drawing.Point(0, 40) Me.outtext.Multiline = True Me.outtext.Name = "outtext" Me.outtext.ReadOnly = True Me.outtext.ScrollBars = System.Windows.Forms.ScrollBars.Both Me.outtext.Size = New System.Drawing.Size(624, 472) Me.outtext.TabIndex = 1 Me.outtext.Text = "TextBox2" ' 'Button1 ' Me.Button1.Location = New System.Drawing.Point(504, 8) Me.Button1.Name = "Button1" Me.Button1.Size = New System.Drawing.Size(96, 24) Me.Button1.TabIndex = 2 Me.Button1.Text = "读 取" ' 'Form1 ' Me.AutoScaleBaseSize = New System.Drawing.Size(6, 14) Me.ClientSize = New System.Drawing.Size(632, 517) Me.Controls.Add(Me.Button1) Me.Controls.Add(Me.outtext) Me.Controls.Add(Me.input) Me.Name = "Form1" Me.Text = "Form1" Me.ResumeLayout(False) End Sub#End Region Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Dim doc As xmldocument = New xmldocument Dim y As String doc.Load(input.Text) Dim rootnode As XmlElement = doc.DocumentElement outtext.Text = "" enumeratenode(rootnode, 0) End Sub Private Sub enumeratenode(ByVal node As XmlNode, ByVal indentval As Integer) Dim type As String Select Case node.NodeType Case XmlNodeType.Element type = "元素" Case XmlNodeType.Text type = "文本" Case XmlNodeType.Comment type = "注释" Case Else outtext.AppendText(".") End Select outtext.AppendText(type & "节点找到") Select Case node.NodeType Case XmlNodeType.Element outtext.AppendText(",name=" & node.Name & vbCrLf) Case XmlNodeType.Text outtext.AppendText(",content=" & node.Value & vbCrLf) Case XmlNodeType.Comment outtext.AppendText(",content=" & node.Value & vbCrLf) Case Else outtext.AppendText(".") End Select If Not node.Attributes Is Nothing Then If node.Attributes.Count <> 0 Then outtext.AppendText("此节点有属性:") Dim attr As XmlAttribute For Each attr In node.Attributes outtext.AppendText(attr.Name & " ＝" & attr.Value & vbCrLf) Next End If End If If node.HasChildNodes Then outtext.AppendText("此节点有子节点:" & vbCrLf) Dim child As XmlNode For Each child In node.ChildNodes enumeratenode(child, indentval + 1) Next End If End Sub
End Class
