Connects the client to the specified TCP port on the specified host as an asynchronous operation.
Syntax
Parameters
- host
- port
Returns
Returns System.Threading.Tasks.Task
The task object representing the asynchronous operation.
Remarks
This operation will not block. The returned Returns System.Threading.Tasks.Task object will complete after the TCP connection has been established. This method does not block the calling thread while the connection request is underway.
Call this method to establish a synchronous remote host connection to the specified host name and port number as an asynchronous operation. After connecting with the remote host, use the TcpClient.GetStream method to obtain the underlying System.Net.Sockets.NetworkStream. Use this System.Net.Sockets.NetworkStream to send and receive data.
If IPv6 is enabled and the TcpClient.AsyncConnect(string, int) method is called to connect to a host that resolves to both IPv6 and IPv4 addresses, the connection to the IPv6 address will be attempted first before the IPv4 address. This may have the effect of delaying the time to establish the connection if the host is not listening on the IPv6 address.
If you receive a System.Net.Sockets.SocketException, use SocketException.ErrorCode to obtain the specific error code. After you have obtained this code, you can refer to the Windows Sockets version 2 API error code documentation in MSDN for a detailed description of the error.
This member outputs trace information when you enable network tracing in your application. For more information, see [<topic://conUsingNetworkTracing>].
Requirements
Assembly: System (in System.dll)
Assembly Versions: 4.0.0.0