FileAccess.Write : FileAccess « System.IO « VB.Net by API

FileAccess.Write
  

Imports System.IO
Imports System.Collections
Imports System.Windows.Forms
Imports System.Runtime.Serialization.Formatters.Binary
Imports System.Runtime.Serialization

Public Class MainClass

   Public Shared Sub Main()
         Dim formatter As BinaryFormatter = New BinaryFormatter()
         Dim output As FileStream

         Dim fileName As String = "test.dat"

         Dim employee As Employee = New Employee("First Name", "Last Name")

         Try
            output = New FileStream(fileName,FileMode.OpenOrCreate, FileAccess.Write)
  
            formatter.Serialize(output, employee)

            output.Close()
  
         Catch fileException As FileNotFoundException
            Console.WriteLine("File Does Not Exits")
         Catch serializableException As SerializationException
            Console.WriteLine("Error Writing to File")
         Catch formattingException As FormatException
            Console.WriteLine("Invalid Format")
         Catch e As IOException
            Console.WriteLine("Cannot close file")

         End Try



         Dim input As FileStream

         Dim reader As BinaryFormatter = New BinaryFormatter()

         input = New FileStream(fileName, FileMode.Open,FileAccess.Read)

         Try
             Dim em As Employee = CType(reader.Deserialize(input), Employee)
         
             Console.WriteLine(em)
         Catch serializableException As SerializationException
             input.Close() 

             Console.WriteLine("No more records in file")
         End Try

   End Sub

End Class

<Serializable()> Public Class Employee
   Private firstName, lastName As String

   Public Sub New(ByVal first As String, ByVal last As String)
      firstName = first
      lastName = last
   End Sub 

   Public Overrides Function ToString() As String
      Return firstName & " " & lastName
   End Function 

End Class
Related examples in the same category

FileAccess.Read