CODEWITHSUNDEEP
vb.net
Dalrymple
Dalrymple

Reputation:

What am I missing to make this piece of Vb code work(VB 2005)

For Each line As String In System.IO.File.ReadAllLines("file.txt")
'Do Something'
Next

and

Using f As System.IO.FileStream = System.IO.File.OpenRead("somefile.txt")
    Using s As System.IO.StreamReader = New System.IO.StreamReader(f)
            While Not s.EndOfStream
                    Dim line As String = s.ReadLine

                    'put you line processing code here

            End While
    End Using
End Using

are both showing as mostly red, I'm running a clean install of MS VS2005 and these codes were both recomended to me, am I missing something else I need to install or declare?

Upvotes: 1

Views: 472

Answers (3)

Mauro
Mauro

Reputation: 4511

for vb6.0 you need

Dim value As String = My.Computer.FileSystem.ReadAllText(file)

Upvotes: 0

Mauro
Mauro

Reputation: 4511

FROM Msdn you should do the following to read all lines

Dim Lines As String()
Lines = System.IO.File.ReadAllLines("file.txt")

For the second example something like this might work

Dim sr as New StreamReader("somefile.txt")
Dim line as String = sr.ReadLine()
Do While Not line is Nothing
    line = sr.ReadLine()
    'do something else
Loop

I just created the following VB.Net Console app and it works fine:

Imports System.IO

Module Module1

Sub Main()
    Dim sr As New StreamReader("somefile.txt")
    Dim line As String = sr.ReadLine()
    Do While Not line Is Nothing
        line = sr.ReadLine()
        'do something else
    Loop

End Sub

End Module

Upvotes: 1

Gavin Miller
Gavin Miller

Reputation: 43815

Do you have your code surrounded by a class and method?

Public class CodeClass
    Public Sub CodeMethod

        Using f As System.IO.FileStream = System.IO.File.OpenRead("somefile.txt")
            Using s As System.IO.StreamReader = New System.IO.StreamReader(f)
                While Not s.EndOfStream
                    Dim line As String = s.ReadLine

                    //Non-vb comment for easier to read SO code
                End While
            End Using
        End Using

    End Sub
End Class

Upvotes: 1

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