xml - VB中的XML序列化

Question

我有一个类“产品”。每个产品都有一个名称。它由“小部件”列表组成。每个小部件都有一个编号。每个 Widget 又包含一个 Widget 列表（可变深度）。最后有一个或多个“套接字”，每个“套接字”都有一个 SocketID 和一个长度。换句话说，最后一个 Widget 不是由另一个 Widget 组成，而是由 Sockets 组成。我想要的 XML 输出看起来像这样。

我已经尝试了我能想到的任何技巧来定义我的类 Product 以进行序列化（ArrayList、List(of Widget)、XMLInclude 等以实现该结果 - 没有成功。以前有人遇到过这个问题吗？

Answer 1

在这里，您可以列出类（对象）的属性及其值。因此，在这一步之后，您只需将它们保存在您喜欢的格式的简单文本文件中。

Imports System.Reflection

Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()
        MyBase.New()

        'This call is required by the Windows Form Designer.
        InitializeComponent()

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    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

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form Designer
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents lvwProperties As System.Windows.Forms.ListView
    <System.Diagnostics.DebuggerStepThrough()> Private Sub InitializeComponent()
        Me.lvwProperties = New System.Windows.Forms.ListView
        Me.SuspendLayout()
        '
        'lvwProperties
        '
        Me.lvwProperties.Dock = System.Windows.Forms.DockStyle.Fill
        Me.lvwProperties.FullRowSelect = True
        Me.lvwProperties.HeaderStyle = System.Windows.Forms.ColumnHeaderStyle.Nonclickable
        Me.lvwProperties.Location = New System.Drawing.Point(0, 0)
        Me.lvwProperties.Name = "lvwProperties"
        Me.lvwProperties.Size = New System.Drawing.Size(292, 273)
        Me.lvwProperties.Sorting = System.Windows.Forms.SortOrder.Ascending
        Me.lvwProperties.TabIndex = 0
        Me.lvwProperties.View = System.Windows.Forms.View.Details
        '
        'Form1
        '
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 273)
        Me.Controls.Add(Me.lvwProperties)
        Me.Name = "Form1"
        Me.Text = "Properties"
        Me.ResumeLayout(False)

    End Sub

#End Region

    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        ' Make column headers.
        lvwProperties.Columns.Clear()
        lvwProperties.Columns.Add("Property", 10, HorizontalAlignment.Left)
        lvwProperties.Columns.Add("Type", 10, HorizontalAlignment.Left)
        lvwProperties.Columns.Add("Value", 10, HorizontalAlignment.Left)

        ' List the properties.
        ' Use the class you want to study instead of Form1.
        Dim property_value As Object
        Dim properties_info As PropertyInfo() = _
            GetType(Form1).GetProperties()
        lvwProperties.Items.Clear()
        For i As Integer = 0 To properties_info.Length - 1
            With properties_info(i)
                If .GetIndexParameters().Length = 0 Then
                    property_value = .GetValue(Me, Nothing)
                    If property_value Is Nothing Then
                        ListViewMakeRow(lvwProperties, _
                            .Name, _
                            .PropertyType.ToString, _
                            "<Nothing>")
                    Else
                        ListViewMakeRow(lvwProperties, _
                            .Name, _
                            .PropertyType.ToString, _
                            property_value.ToString)
                    End If
                Else
                    ListViewMakeRow(lvwProperties, _
                        .Name, _
                        .PropertyType.ToString, _
                        "<array>")
                End If
            End With
        Next i

        ' Size the columns to fit the data.
        lvwProperties.Columns(0).Width = -2
        lvwProperties.Columns(1).Width = -2
        lvwProperties.Columns(2).Width = -2

        ' Size the form.
        Dim new_wid As Integer = 30
        For i As Integer = 0 To lvwProperties.Columns.Count - 1
            new_wid += lvwProperties.Columns(i).Width
        Next i
        Me.Size = New Size(new_wid, Me.Size.Height)
    End Sub

    ' Make a ListView row.
    Private Sub ListViewMakeRow(ByVal lvw As ListView, ByVal item_title As String, ByVal ParamArray subitem_titles() As String)
        ' Make the item.
        Dim new_item As ListViewItem = lvw.Items.Add(item_title)

        ' Make the sub-items.
        For i As Integer = subitem_titles.GetLowerBound(0) To subitem_titles.GetUpperBound(0)
            new_item.SubItems.Add(subitem_titles(i))
        Next i
    End Sub
End Class