Error When Adapting VB Program to WPF

[quddusaliquddus]

I am adapting a VB program

(

Server: http://vb.net-informations.com/commu...hat_server.htm

Client: http://vb.net-informations.com/commu...hat_client.htm

)

to WPF but I am recieving an error (Parameter Count Mismatch) at the bold line:

Imports System.Net.Sockets
Imports System.Text
Imports System.Threading
Imports System.Threading.Thread

Public Class Window1
    Dim clientSocket As New System.Net.Sockets.TcpClient()
    Dim serverStream As NetworkStream
    Dim readData As String
    Dim infiniteCounter As Integer

    Private Sub Button1_Click(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click
        Dim outStream As Byte() = _
        System.Text.Encoding.ASCII.GetBytes(TextBox2.Text + "$")
        serverStream.Write(outStream, 0, outStream.Length)
        serverStream.Flush()
    End Sub

    Private Sub msg()

        If TextBox1.Dispatcher.Thread.Equals(Thread.CurrentThread) Then
            TextBox1.Text = TextBox1.Text + Environment.NewLine + " >> " + readData
        Else
            TextBox1.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal, New EventHandler(AddressOf msg))
        End If

    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
        readData = "Conected to Chat Server ..."
        msg()
        clientSocket.Connect("127.0.0.1", 8888)
        'Label1.Text = "Client Socket Program - Server Connected ..."
        serverStream = clientSocket.GetStream()

        Dim outStream As Byte() = _
        System.Text.Encoding.ASCII.GetBytes(TextBox3.Text + "$")
        serverStream.Write(outStream, 0, outStream.Length)
        serverStream.Flush()

        Dim ctThread As Thread = New Thread(AddressOf getMessage)
        ctThread.Start()
    End Sub

    Private Sub getMessage()

        For infiniteCounter = 1 To 2
            infiniteCounter = 1
            serverStream = clientSocket.GetStream()
            Dim buffSize As Integer
            Dim inStream(10024) As Byte
            buffSize = clientSocket.ReceiveBufferSize
            serverStream.Read(inStream, 0, buffSize)
            Dim returndata As String = _
            System.Text.Encoding.ASCII.GetString(inStream)
            readData = "" + returndata
            msg()
        Next

    End Sub

End Class

The Server code is :

Imports System.Net.Sockets
Imports System.Text
Module Module1
    Dim clientsList As New Hashtable
    Sub Main()
        Dim serverSocket As New TcpListener(8888)
        Dim clientSocket As TcpClient
        Dim infiniteCounter As Integer
        Dim counter As Integer

        serverSocket.Start()
        msg("Chat Server Started ....")
        counter = 0
        infiniteCounter = 0
        For infiniteCounter = 1 To 2
            infiniteCounter = 1
            counter += 1
            clientSocket = serverSocket.AcceptTcpClient()

            Dim bytesFrom(10024) As Byte
            Dim dataFromClient As String

            Dim networkStream As NetworkStream = _
            clientSocket.GetStream()
            networkStream.Read(bytesFrom, 0, CInt(clientSocket.ReceiveBufferSize))
            dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom)
            dataFromClient = _
            dataFromClient.Substring(0, dataFromClient.IndexOf("$"))

            clientsList(dataFromClient) = clientSocket

            broadcast(dataFromClient + " Joined ", dataFromClient, False)

            msg(dataFromClient + " Joined chat room ")
            Dim client As New handleClinet
            client.startClient(clientSocket, dataFromClient, clientsList)
        Next

        clientSocket.Close()
        serverSocket.Stop()
        msg("exit")
        Console.ReadLine()
    End Sub

    Sub msg(ByVal mesg As String)
        mesg.Trim()
        Console.WriteLine(" >> " + mesg)
    End Sub
    Private Sub broadcast(ByVal msg As String, _
    ByVal uName As String, ByVal flag As Boolean)
        Dim Item As DictionaryEntry
        For Each Item In clientsList
            Dim broadcastSocket As TcpClient
            broadcastSocket = CType(Item.Value, TcpClient)
            Dim broadcastStream As NetworkStream = _
                    broadcastSocket.GetStream()
            Dim broadcastBytes As [Byte]()

            If flag = True Then
                broadcastBytes = Encoding.ASCII.GetBytes(uName + " says : " + msg)
            Else
                broadcastBytes = Encoding.ASCII.GetBytes(msg)
            End If

            broadcastStream.Write(broadcastBytes, 0, broadcastBytes.Length)
            broadcastStream.Flush()
        Next
    End Sub

    Public Class handleClinet
        Dim clientSocket As TcpClient
        Dim clNo As String
        Dim clientsList As Hashtable

        Public Sub startClient(ByVal inClientSocket As TcpClient, _
        ByVal clineNo As String, ByVal cList As Hashtable)
            Me.clientSocket = inClientSocket
            Me.clNo = clineNo
            Me.clientsList = cList
            Dim ctThread As Threading.Thread = New Threading.Thread(AddressOf doChat)
            ctThread.Start()
        End Sub

        Private Sub doChat()
            Dim infiniteCounter As Integer
            Dim requestCount As Integer
            Dim bytesFrom(10024) As Byte
            Dim dataFromClient As String
            Dim sendBytes As [Byte]()
            Dim serverResponse As String
            Dim rCount As String
            requestCount = 0
            For infiniteCounter = 1 To 2
                infiniteCounter = 1
                Try
                    requestCount = requestCount + 1
                    Dim networkStream As NetworkStream = _
                            clientSocket.GetStream()
                    networkStream.Read(bytesFrom, 0, CInt(clientSocket.ReceiveBufferSize))
                    dataFromClient = System.Text.Encoding.ASCII.GetString(bytesFrom)
                    dataFromClient = _
                        dataFromClient.Substring(0, dataFromClient.IndexOf("$"))
                    msg("From client - " + clNo + " : " + dataFromClient)
                    rCount = Convert.ToString(requestCount)

                    broadcast(dataFromClient, clNo, True)
                Catch ex As Exception
                    MsgBox(ex.ToString)
                End Try
            Next
        End Sub

    End Class
End Module

[jmcilhinney]

Are you saying you get that error at compile time or at run time? I pasted your code into a project and got no error there but I did get a compilation error here:

TextBox1.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal, New EventHandler(AddressOf msg))

Method 'Private Sub msg()' does not have a signature compatible with delegate 'Delegate Sub EventHandler(sender As Object, e As System.EventArgs)'.

which is quite correct. In WinForms you would have used a MethodInvoker delegate. You're not going to reference System.Windows.Forms.dll just for that though, so you should declare your own delegate:

Private Delegate Sub MethodInvoker()

Also, is this on purpose?

Dim bytesFrom(10024) As Byte

[quddusaliquddus]

My Error is at runtime. But that maybe be because Ive placed the code to work within a WPF project and a xaml form.

I dont know much programming.

To put it simply - I am attempting to make the program in the above-mentioned link work in wpf.

It works when downloaded and run in its windows application form

Should I post an attachment?

[jmcilhinney]

I got no such error:

Imports System.Net.Sockets
Imports System.Text
Public Class Window1
    Dim clientSocket As New System.Net.Sockets.TcpClient()
    Dim serverStream As NetworkStream
    Dim readData As String
    Dim infiniteCounter As Integer

    Private Delegate Sub MethodInvoker()

    Private Sub Button1_Click(ByVal sender As System.Object, _
        ByVal e As System.EventArgs) Handles Button1.Click
        Dim outStream As Byte() = _
        System.Text.Encoding.ASCII.GetBytes(TextBox2.Text + "$")
        serverStream.Write(outStream, 0, outStream.Length)
        serverStream.Flush()
    End Sub

    Private Sub msg()
        'If Me.InvokeRequired Then
        '    Me.Invoke(New MethodInvoker(AddressOf msg))
        If TextBox1.Dispatcher.Thread.Equals(System.Threading.Thread.CurrentThread) Then
            TextBox1.Text = TextBox1.Text + _
    Environment.NewLine + " >> " + readData
        Else
            TextBox1.Dispatcher.BeginInvoke(System.Windows.Threading.DispatcherPriority.Normal, New MethodInvoker(AddressOf msg))
        End If
    End Sub

    Private Sub Button2_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button2.Click
        readData = "Conected to Chat Server ..."
        msg()
        clientSocket.Connect("127.0.0.1", 8888)
        'Label1.Text = "Client Socket Program - Server Connected ..."
        serverStream = clientSocket.GetStream()

        Dim outStream As Byte() = _
        System.Text.Encoding.ASCII.GetBytes(TextBox3.Text + "$")
        serverStream.Write(outStream, 0, outStream.Length)
        serverStream.Flush()

        Dim ctThread As System.Threading.Thread = _
   New System.Threading.Thread(AddressOf getMessage)
        ctThread.Start()
    End Sub

    Private Sub getMessage()
        For infiniteCounter = 1 To 2
            infiniteCounter = 1
            serverStream = clientSocket.GetStream()
            Dim buffSize As Integer
            Dim inStream(10024) As Byte
            buffSize = clientSocket.ReceiveBufferSize
            serverStream.Read(inStream, 0, buffSize)
            Dim returndata As String = _
            System.Text.Encoding.ASCII.GetString(inStream)
            readData = "" + returndata
            msg()
        Next
    End Sub
End Class

What I did get was a whole bunch of non-visual characters displayed in the main text box, but that's for another thread if you can't get it sorted.

[quddusaliquddus]

Yeah i get the same aswell.