How to read txt file for a certain line in vb.net ?

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I have this in my file txt file:

#
abcdef
##
hijkl
##
mnop

Dim fileReader As String
fileReader = My.Computer.FileSystem.ReadAllText("C:\Users.test.txt")
txtStrip.Text = System.Text.RegularExpressions.Regex.Match(fileReader,(\#)([\s\S]+)(\##)).ToString()

I want to execute in my code is between # and the first ## which is = abdef only

How I'm going to edit that code ? I'm using vb.net

Posted 12-Sep-13 15:55pm

gogole_yuna

Updated 12-Sep-13 15:56pm

v2

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Sergey Alexandrovich Kryukov · Accepted Answer · 2013-09-12T16:35:00

As your input files are apparently small, you can do the following: use System.IO.File.ReadAllLines (instead of ReadAllText. This method returns your an array of strings each representing, surprisingly, a line. Access array elements by index and use the line(s) you need.

Please see: http://msdn.microsoft.com/en-us/library/system.io.file.readalllines.aspx[^].

[EDIT]

gogole_yuna asked:
what if my txt file is big..?

Then you would simply use System.IO.StreamReader with the method ReadLine. Count lines as you read. Pick the one(s) you need. Please see:
http://msdn.microsoft.com/en-us/library/system.io.streamreader.aspx[^].

—SA