Help Deserialize XML - Very New

[Wesley008]

Alright, first off, I'm very new to this whole Serialize / Deserialize.

I'm trying to Deserialize a piece of XML that I serialized. Here's all my code:

Writing to it.

                Dim xmlSer As New XmlSerializer(GetType(List(Of ClassInformation)))
                Dim ClassesList As New List(Of ClassInformation)
                ClassesList.Add(New ClassInformation(.txtClassName.Text, _
                                         .txtClassCode.Text, _
                                         .txtClassRoom.Text, _
                                         .numGrade.Value))
                Dim sw As New StreamWriter(Application.StartupPath & "\Data\" & .txtClassCode.Text & ".xml", True)
                xmlSer.Serialize(sw, ClassesList)
                sw.Close()

Declaring my Class

Public Class ClassInformation
    Public ClassName As String
    Public ClassCode As String
    Public ClassRoom As String
    Public Grade As String

    Public Sub New()
    End Sub

    Public Sub New(ByVal nClassName As String, ByVal nClassCode As String, ByVal nClassRoom As String, ByVal nGrade As String)
        ClassName = nClassName
        ClassCode = nClassCode
        ClassRoom = nClassRoom
        Grade = nGrade
    End Sub
End Class

Reading

    Public Sub ReadClass()
        With frmClassCreate
            Dim xmlDe As New XmlSerializer(GetType(ClassInformation))
            Dim sr As New StreamReader(Application.StartupPath & "\Data\1.xml", True)
            Dim sName As New ClassInformation
            If sr.EndOfStream <> True Then
                sName = xmlDe.Deserialize(sr)
                MsgBox(sName.ClassName)
            End If
            sr.Close()
        End With
    End Sub

[techgnome]

two things.... 1) Most important... you didn't declare you class as serializable ... add <Serializable> right in front of your public class declaration... 2) I don't think fields can be serialized... try making them properties instead.

-tg

[Wesley008]

Alright, I've been fiddling around with it, and it seems to work.

BUT, I want this to make it more appealing to the eye and organized.

<?xml version="1.0" encoding="utf-8"?>
<Classes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<ClassesInfo> 'THESE THINGS <
  <ClassName>1</ClassName>
  <ClassCode>1</ClassCode>
  <ClassRoom>1</ClassRoom>
  <Grade>9</Grade>
</ClassesInfo> 'THESE THINGS <
<ClassesInfo> 'THESE THINGS <
  <ClassName>5</ClassName>
  <ClassCode>3</ClassCode>
  <ClassRoom>2</ClassRoom>
  <Grade>1</Grade>
</ClassesInfo> 'THESE THINGS <
</Classes>

So how would I do that? Here's my current code:

<XmlRoot(ElementName:="Classes")> _
<Serializable()> _
Public Class ClassInformation
    Private oClassName As String
    Private oClassCode As String
    Private oClassRoom As String
    Private oGrade As String
 
    Public Property ClassName() As String
        Get
            Return oClassName
        End Get
        Set(ByVal value As String)
            oClassName = value
        End Set
    End Property
 
    Public Property ClassCode() As String
        Get
            Return oClassCode
        End Get
        Set(ByVal value As String)
            oClassCode = value
        End Set
    End Property
 
    Public Property ClassRoom() As String
        Get
            Return oClassRoom
        End Get
        Set(ByVal value As String)
            oClassRoom = value
        End Set
    End Property
 
    Public Property Grade() As String
        Get
            Return oGrade
        End Get
        Set(ByVal value As String)
            oGrade = value
        End Set
    End Property
End Class

Dim xmlSer As New XmlSerializer(GetType(ClassInformation))
                Dim dInfo As New ClassInformation
                dInfo.ClassName = .txtClassName.Text
                dInfo.ClassCode = .txtClassCode.Text
                dInfo.ClassRoom = .txtClassRoom.Text
                dInfo.Grade = .numGrade.Value
                MsgBox(dInfo.ClassName & " " & dInfo.ClassRoom & " " & dInfo.ClassCode)
                Dim sw As New StreamWriter(Application.StartupPath & "\Data\" & .txtClassCode.Text & ".xml", True)
                xmlSer.Serialize(sw, dInfo)
                sw.Dispose()
                sw.Close()

[Wesley008]

Deleted - Look up 1

[techgnome]

I want this to make it more appealing to the eye and organized. //snip// So how would I do that?

Depends on what you mean. Do you want your stuff in attributes rather than elements? Look up the XMLAttribute tag on MSDN ... that should do it.

-tg