File.AppendText Method Creates a StreamWriter and appends UTF-8 encoded text to the file. : Stream Writer « File Directory « VB.Net






  1. VB.Net
  2. File Directory
  3. Stream Writer

File.AppendText Method Creates a StreamWriter and appends UTF-8 encoded text to the file.

 

Imports System
Imports System.IO

Public Class Test
    Public Shared Sub Main()
        Dim path As String = "c:\temp\MyTest.txt"
        Dim sw As StreamWriter

        If File.Exists(path) = False Then
            sw = File.CreateText(path)
            sw.WriteLine("A")
            sw.WriteLine("B")
            sw.WriteLine("C")
            sw.Flush()
            sw.Close()
        End If
        sw = File.AppendText(path)
        sw.WriteLine("D")
        sw.WriteLine("E")
        sw.WriteLine("F")
        sw.Flush()
        sw.Close()

        Dim sr As StreamReader = File.OpenText(path)
        Dim s As String
        Do While sr.Peek() >= 0
            s = sr.ReadLine()
            Console.WriteLine(s)
        Loop
        sr.Close()
    End Sub
End Class








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