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How to read and write text file (.txt) in VB.net


Know More :  ASP.Net  VB.Net  C#.Net  Sliverlight  XML  WPF  WCF Ajax
Let’s start ..In visual studio 2010\2008\2005\2003 edition, Firstly design your desktop application as shown in figure..
textfile
For design, you have drag some controls like one textbox or richtextbox,one Label and three buttons and rename it on form design also set textbox multiline properties true as shown in above figure..after do that go to form view code , first declare namespace like this…….



Imports System.IO
Public Class Form1
    Dim fsteream As New FileStream("C:\Example.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite)
    Dim sw As New StreamWriter(fsteream)
    Private Sub Reset_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Reset.Click
        TextBoxX1.Text = ""
    End Sub
    Public Sub writedata(ByVal Data As String, ByVal sw As StreamWriter)
        sw.WriteLine(Data)
        sw.WriteLine("")
        sw.Flush()
    End Sub
    Public Sub readdata(ByVal r As StreamReader)
        TextBoxX1.Text = r.ReadToEnd
    End Sub
    Private Sub Write_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Write.Click
        sw.BaseStream.Seek(0, SeekOrigin.End)
        writedata(TextBoxX1.Text, sw)
        Read.Enabled = True
        Write.Enabled = False
        TextBoxX1.Text = ""
    End Sub
    Private Sub Read_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Read.Click
        Dim sr As New StreamReader(fsteream)
        sr.BaseStream.Seek(0, SeekOrigin.Begin)
        readdata(sr)
        Read.Enabled = False
        Write.Enabled = True
    End Sub
    Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    End Sub
End Class
Now start debugging from debug menu or press f5  button, After debug your application Output as shown in figure ……
ScreenShot047 
after type, click on “write” button  and also click on read button.Now your text file is complete for read and write.Thanks.
Know More :  ASP.Net  VB.Net  C#.Net  Sliverlight  XML  WPF  WCF Ajax
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About Sujay

Hi ! I am Sujay Sharma. I am working in Indian Railway as Guard. I am sharing my experience about Microsoft SQL Server with ASP.NET ,VB.NET,C#.NET,XML "" Thanks.
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