Read/Write file via Share Memory

Question

Dear Sirs
    I have a class as follows code, When a LotNum data changes, I want to save the WIPData to file immediately. The file will be load when application starting. Can I use share memory mapping to a file, after that I can access the share menory to read/write the file directly？

Best Regards,
<Serializable()> Public Class WIPData
    Implements ISerializable

    Public PartNum As String
    Public LotNum As New List(Of String)

    Public Sub New()

        'aMaterial_Lot_Number = New ArrayList

    End Sub

    Private Sub New(ByVal Info As SerializationInfo, ByVal Context As StreamingContext)

        'aMaterial_Lot_Number = New ArrayList
        With Info
            Me.LotNum = .GetValue("LotNum", Me.LotNum.GetType)
            Me.PartNum = .GetString("PartNum")
        End With

    End Sub

    Public Sub GetObjectData(ByVal info As System.Runtime.Serialization.SerializationInfo, ByVal context As System.Runtime.Serialization.StreamingContext) Implements System.Runtime.Serialization.ISerializable.GetObjectData

        info.AddValue("PartNum", Me.PartNum)
        info.AddValue("LotNum", Me.LotNum, Me.LotNum.GetType())

    End Sub

End Class

Answer 1

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Answer 2

You can save that direct, by simply serialize the array direct.

Look at this sample Tom made once bassicly.

http://www.vb-tips.com/SerializeArrayList.aspx

However, for your problem is an IList implementing class like the Generic Dictionary much better.

Be aware that if you write this in this way to file, you have to read and write it constantly.
For that you can use the streamreader and streamwriter in its standard way.

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Success
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