FileIO in .NET?

[Archaven]

Hi. In dos based c++,i've done something like reading/writing a structure to a file. Is this possible with VB.NET? I've would like to save an object(probably a class) or even multiple object to a file and retrieve it's binary data and cast it back to an object.

For eg. if i have a class:

Public Class Student
Public Name As String
Public Age As Integer
Public DateOfBirth As Date
Public Religion As ReligionConstant
End Class

And I have few objects of the Student:

Dim Matty As New Student()
Dim Steven As New Student()
Dim Jay As New Student()

Matty.Name = "Matty"
Matty.Age = 12
Matty.DateOfBirth = "#12/5/2003#"
Matty.Religion = ReligionConstant.Christian

Steven.Name = "Steven"
Steven.Age = 21
Steven.DateOfBirth = "#12/5/2003#"
Steven.Religion = ReligionConstant.Christian

Jay.Name = "Jay"
Jay.Age = 35
Jay.DateOfBirth = "#9/9/2003#"
Jay.Religion = ReligionConstant.Christian

I would like to save these information into a file using binary format (not text) and need to know how to read these info and cast it back to an object. Thanks in advance.

Archaven

[biswajitdas]

to read and write the binary data the example is

import system.io
dim fs as filestream = new filestream("data.dat",filemode.open)
dim mybinaryreader as binaryreader = new binaryreader(fs)
dim buffer(1000) as byte
mybinaryreader.rad(buffer,0,1000)


Like this .if u can say i write the full program.but i think it give u idea.


Biswajit das

[wossname]

Check out "Serialization" in the help index. That tells you how to write class data to either binary or XML files.

[Cander]

Yeah Serialize is great for taking collections and arrays and saving them out to file

I have a C# example here
http://www.planet-source-code.com/vb...=186&lngWId=10

Since you said you know C++, you shouldnt have any problem with the above code since C# is baically the same as VB.NET using C style syntax.