How to serialize or restore Serialized File in .Net?

What is Serialization?

serialization is process of converting object into stream

Lets learn how to serialize and restore serialized file
In the following lines I will show how we can serialize a class in binary and soap format.


1. First create a class with the tag in front which denotes that class is serializable.

Public Class Serilize

Public Title As String
Public Number As Int16

End Class


2. create a form and add the following imports and code

Imports System.IO
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization.Formatters.soap

' this sub would create the instance of the class and add in the arraylist and then finally save the 'object in Serilize.txt file which can be viewed in notepad

Sub SaveSerializedFile()
Dim lst As New ArrayList
Dim obj As New Serilize

obj.Title = "This is First title"
obj.Number = 1
lst.Add(obj)

obj = New Serilize
obj.Title = "This is Second Title"
obj.Number = 2
lst.Add(obj)

obj = New Serilize
obj.Title = "This is third Title"
obj.Number = 3
lst.Add(obj)

Dim s As New FileStream("Serilize.txt", FileMode.Create)

'Dim f As New BinaryFormatter
' If we want to serilize the object using binary formatter then
' we have to disable the soap formatter and enable Binaryformatter
' declarations.

Dim f As New SoapFormatter
f.Serialize(s, lst)
s.Close()
End Sub


Sub RestoreSerializedFile()
Dim s = New FileStream("Serilize.txt", FileMode.Open)

'Dim f As BinaryFormatter = New BinaryFormatter
' If we want to serilize the object using binary formatter then
' we have to disable the soap formatter and enable Binaryformatter
' declarations.

Dim f As SoapFormatter = New SoapFormatter

Dim RestoredList As ArrayList
RestoredList = CType(f.Deserialize(s), ArrayList)
s.close()
Dim x As Serilize
For Each x In RestoredList
txtDisplay.Text = txtDisplay.Text & x.Title & " Lesson Number " & x.Number

Next


End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
SaveSerializedFile()
End Sub


Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
RestoreSerializedFile()
End Sub

Related Posts by Categories