vb.net - convert from C# to VB

Posted on 2010-08-30
Medium Priority
Last Modified: 2012-05-10
I am getting a few errors on my conversion from C#.NET to VB.NET...can anyone help..thanks....

Errors like:

Delegate 'System.Threading.Threadstart' requires an 'AddressOf' expression or lambda expression as  the only argument to its constructor

'Over load resolution failed because no accessible 'Write' accepts this number of arguments'

'Name 'this' is not declared'

'Name 'args' is not declared'

'name base is not declared'


Imports System.Threading.Thread
Imports System.IO
Imports System.IO.FileStream

Public Class Form1

    Dim workerthread As New System.Threading.Thread(New System.Threading.ThreadStart(WorkerT))
    Dim ContinueWorking As Boolean
    ' workerthread = "NULL"

    Public Sub onStart()

        ContinueWorking = True
        workerthread = New System.Threading.Thread(New System.Threading.ThreadStart(WorkerT))
        this.EventLog.WriteEntry("event message text", EventLogEntryType.Information)
    End Sub

    Public Sub onStop()

        ContinueWorking = False
        ' give the worker 30 seconds to finish, abort after
        If (workerthread.ThreadState <> System.Threading.ThreadState.Stopped) Then

        End If
    End Sub

    Private Sub WorkerT()

        ' go into endless loop, the only way to leave this loop is through a signal
        While (ContinueWorking)

            Dim fFileName As String
            Dim fs As New System.IO.FileStream
            fFileName = "C:\test"
            fFileName = Guid.NewGuid().ToString()

            ' System.IO.FileStream fs = new System.IO.FileStream(@"c:\" + fFileName + ".txt", System.IO.FileMode.CreateNew, System.IO.FileAccess.ReadWrite, System.IO.FileShare.None, 2048)
             fs = new System.IO.FileStream(@"c:\" + fFileName + ".txt", System.IO.FileMode.CreateNew, System.IO.FileAccess.ReadWrite, System.IO.FileShare.None, 2048)
            fs.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5)

            Dim fexit As String
            Dim fe As New System.IO.FileStream
            fexit = Guid.NewGuid().ToString()
            fe = new System.IO.FileStream(@"c:\exit_" + fexit + ".txt", System.IO.FileMode.CreateNew, System.IO.FileAccess.ReadWrite, System.IO.FileShare.None, 2048)
            fe.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5)
        End While
    End Sub

End Class

Question by:GlobaLevel
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LVL 75

Expert Comment

by:käµfm³d 👽
ID: 33563146
Change this line

    workerthread = New System.Threading.Thread(New System.Threading.ThreadStart(WorkerT))

to this line

    workerthread = New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf WorkerT))
LVL 11

Accepted Solution

ladarling earned 2000 total points
ID: 33563189
Make these changes:
Dim workerthread As New System.Threading.Thread(New System.Threading.ThreadStart(WorkerT))
Dim workerthread As New System.Threading.Thread(New System.Threading.ThreadStart(AddressOf WorkerT))
 this.EventLog.WriteEntry("event message text", EventLogEntryType.Information)
 Me.EventLog.WriteEntry("event message text", EventLogEntryType.Information)
 Change ALL occurances of this:
 fs.Write(new byte[] { 1, 2, 3, 4, 5 }, 0, 5)
 fs.Write(new byte() { 1, 2, 3, 4, 5 }, 0, 5)
LVL 86

Expert Comment

by:Mike Tomlinson
ID: 33563722
Pretty sure you don't even need the ThreadStart in VB...

...think you can just do:

    Dim workerthread As New System.Threading.Thread(AddressOf WorkerT)
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LVL 17

Expert Comment

ID: 33563753
The following web site converts C# code to VB.NET for free. It does a pretty good job. I used it a lot of times:


LVL 29

Expert Comment

by:Kumaraswamy R
ID: 33564237
LVL 19

Expert Comment

by:Amandeep Singh Bhullar
ID: 33574584
Check the link

Hope this will you

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