File Directory VB.Net

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  4. FileStream CanWrite Property tells whether the current stream supports writing
Imports System
Imports System.IO
Public Class Test
    Public Shared Sub Main()
        Dim path As String = "c:\temp\MyTest.txt"
        File.SetAttributes(path, File.GetAttributes(path) Or FileAttributes.ReadOnly)
        Dim fs As FileStream = New FileStream(path, FileMode.OpenOrCreate, FileAccess.Read)
        If fs.CanWrite Then
            Console.WriteLine("The stream connected to {0} is writable.", path)
        Else
            Console.WriteLine("The stream connected to {0} is not writable.", path)
        End If
        fs.Close()
    End Sub
End Class