Imports System.IO
Imports System.Collections
Imports System.Runtime.Serialization
' Note: When building this code, you must reference the
' System.Runtime.Serialization.Formatters.Soap.dll assembly.
Imports System.Runtime.Serialization.Formatters.Soap
Module App
Sub Main()
Serialize()
Deserialize()
End Sub
Sub Serialize()
' Create a hashtable of values that will eventually be serialized.
Dim addresses As New Hashtable
addresses.Add("Jeff", "123 Main Street, Redmond, WA 98052")
addresses.Add("Fred", "987 Pine Road, Phila., PA 19116")
addresses.Add("Mary", "PO Box 112233, Palo Alto, CA 94301")
' To serialize the hashtable (and its key/value pairs),
' you must first open a stream for writing.
' Use a file stream here.
Dim fs As New FileStream("DataFile.soap", FileMode.Create)
' Construct a SoapFormatter and use it
' to serialize the data to the stream.
Dim formatter As New SoapFormatter
Try
formatter.Serialize(fs, addresses)
Catch e As SerializationException
Console.WriteLine("Failed to serialize. Reason: " & e.Message)
Throw
Finally
fs.Close()
End Try
End Sub
Sub Deserialize()
' Declare the hashtable reference.
Dim addresses As Hashtable = Nothing
' Open the file containing the data that you want to deserialize.
Dim fs As New FileStream("DataFile.soap", FileMode.Open)
Try
Dim formatter As New SoapFormatter
' Deserialize the hashtable from the file and
' assign the reference to the local variable.
addresses = DirectCast(formatter.Deserialize(fs), Hashtable)
Catch e As SerializationException
Console.WriteLine("Failed to deserialize. Reason: " & e.Message)
Throw
Finally
fs.Close()
End Try
' To prove that the table deserialized correctly,
' display the key/value pairs to the console.
Dim de As DictionaryEntry
For Each de In addresses
Console.WriteLine("{0} lives at {1}.", de.Key, de.Value)
Next
End Sub
End Module