Imports System.Net.Sockets
Imports System.Net
Imports System.Threading
Imports System.Text
Public Class Tester
Public Shared Sub Main
Dim myTcpClient As New TcpClient()
Dim myNetworkStream As NetworkStream
Try
myTcpClient.Connect("127.0.0.1", 12345)
myNetworkStream = myTcpClient.GetStream()
Catch ex As ArgumentOutOfRangeException
Console.WriteLine(ex.Message)
Catch ex As SocketException
Console.WriteLine(ex.Message)
End Try
Dim myBytes() As Byte = Encoding.ASCII.GetBytes("asdf")
myNetworkStream = myTcpClient.GetStream()
myNetworkStream.Write(myBytes, 0, myBytes.Length)
Dim bufferSize As Integer = myTcpClient.ReceiveBufferSize
Dim myBufferBytes(bufferSize) As Byte
myNetworkStream.Read(myBufferBytes, 0, bufferSize)
Console.WriteLine(Encoding.ASCII.GetString(myBufferBytes, 0, bufferSize))
End Sub
End Class
No connection could be made because the target machine actively refused it
Unhandled Exception: System.InvalidOperationException: The operation is not allowed on non-connected
sockets.
at System.Net.Sockets.TcpClient.GetStream()
at Tester.Main()