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ASP.NET: Windows TCP/IP Sockets Programming
An example using the TcpClient class to connect.
Network with other computers including Internet servers. messageToServer should be a valid HTTP/1.0 or HTTP/1.1 request to connect to an Internet server
or simply use System.Net.WebClient.
For more information see the .NET TCP/IP Sockets tutorial.
Private Function ConnectToServer(ByVal serverName As String, _
ByVal messageToServer As String, ByVal port As Integer) As String
Try
ConnectToServer = ""
Dim client As New System.Net.Sockets.TcpClient(serverName, port)
Dim bData As Byte() = System.Text.Encoding.ASCII.GetBytes(messageToServer)
Dim stream As System.Net.Sockets.NetworkStream = client.GetStream()
stream.Write(bData, 0, bData.Length)
bData = New Byte(2048) {}
Dim bytes As Int32 = stream.Read(bData, 0, bData.Length)
While bytes > 0
ConnectToServer &= System.Text.Encoding.ASCII.GetString(bData, 0, bytes)
bytes = stream.Read(bData, 0, bData.Length)
End While
stream.Close()
client.Close()
Catch e As ArgumentNullException
ConnectToServer = "ArgumentNullException"
Catch e As System.Net.Sockets.SocketException
ConnectToServer = "SocketException"
End Try
End Function
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