Use FileInfo open a file to read : FileInfo « File Directory « VB.Net






Use FileInfo open a file to read

 

Imports System
Imports System.IO

Public Class CopyToTest
    Public Shared Sub Main()
        Try
            Dim fi As New FileInfo("temp.txt")
            Dim sw As StreamWriter = fi.AppendText()
            sw.WriteLine("test...")
            sw.Flush()
            sw.Close()
            Dim sr As New StreamReader(fi.OpenRead())
            While sr.Peek() <> -1
                Console.WriteLine(sr.ReadLine())
            End While
            Dim newfi As FileInfo = fi.CopyTo("newTemp.txt")
            sr = New StreamReader(newfi.OpenRead())
            While sr.Peek() <> -1
                Console.WriteLine(sr.ReadLine())
            End While
        Catch e As Exception
            Console.WriteLine(e.Message)
        End Try
    End Sub
End Class

   
  








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12.FileInfo.DirectoryName Property gets a string representing the directory's full path.
13.FileInfo.GetAccessControl gets a FileSecurity object that encapsulates the access control list (ACL) entries
14.FileInfo.IsReadOnly Property gets or sets a value that determines if the current file is read only.
15.FileInfo.Length Property gets the size, in bytes, of the current file.
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20.FileInfo.OpenRead creates a read-only FileStream.
21.FileInfo.OpenText creates a StreamReader with UTF8 encoding that reads from an existing text file.
22.FileInfo.OpenWrite creates a write-only FileStream.
23.FileInfo.Replace replaces the contents of a file
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25.FileInfo.Length Property tells the size, in bytes, of the current file.