OpenTextFileReader Method

OpenTextFileReader Method

Location

My.Computer.FileSystem.OpenTextFileReader

Syntax

     Dim result As System.IO.StreamReader = _        My.Computer.FileSystem.OpenTextFileReader(path[, encoding])

path (required; String): The path of the file to read.
encoding (optional; Encoding): The character encoding method to use, as a System.Text.Encoding object. If this parameter is missing, ASCII is used as the default encoding method.

Description

The OpenTextFileReader opens a file for text reading and returns a stream of type System.IO.StreamReader.

Public Members

The returned StreamReader object includes the following notable public members.

Member	Description
`Close`	Method. Closes the file.
`ReadLine`	Method. Reads one line from the file and returns it as a string.

Usage at a Glance

An exception is thrown if the path parameter is missing or invalid, or if the file it refers to does not exist.
An exception is thrown if the user lacks sufficient file access permissions.

Example

     Dim oneLine As String     Dim inputFile As System.IO.StreamReader = _        My.Computer.FileSystem.OpenTextFileReader("c:\temp\data.txt")     Do While inputFile.EndOfStream = False        oneLine = inputFile.ReadLine(  )        ' ----- Process data here...     Loop     inputFile.Close(  )

Related Framework Entries

Microsoft.VisualBasic.FileIO.FileSystem.OpenTextFileReader Method
Microsoft.VisualBasic.MyServices.FileSystemProxy.OpenTextFileReader Method
System.IO.StreamReader Class
System.IO.TextReader Class