How to VB.NET Simple TextReader

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How to VB.NET Simple TextReader

Textreader and TextWriter are the another way to read and write file respectively, even though these are not stream classes. The StreamReader and StreamWriter classes are derived from TextReader and TextWriter classes respectively. The following program using TextReader , Read the entire content of the file into a String

VB.NET Source Code

Imports System.IO
Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, _
		ByVal e As System.EventArgs) Handles Button1.Click
        Try
            Dim line As String
            Dim readFile As System.IO.TextReader = New _
					StreamReader("C:\Test1.txt")
            line = readFile.ReadToEnd()
            MsgBox(line)
            readFile.Close()
            readFile = Nothing
        Catch ex As IOException
            MsgBox(ex.ToString)
        End Try
    End Sub
End Class

When you execute this program , TextReader read the entire file in one stretch.

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