BeginConnect(String,Int32,String,Int32,Int32,Object) Method

Connect to a server asynchronously, specifying the local interface and a range of local ports to use. The EndConnect event is raised when completed.

[Visual Basic]
<DescriptionAttribute("Connect to a server asynchronously. The EndConnect event is raised when completed.")>
Overloads Public Overridable Function BeginConnect( _
   ByVal server As String, _
   ByVal serverPort As Integer, _
   ByVal client As String, _
   ByVal clientPortMin As Integer, _
   ByVal clientPortMax As Integer, _
   ByVal state As Object _
) As IAsyncResult

[C#]
[DescriptionAttribute("Connect to a server asynchronously. The EndConnect event is raised when completed.")]
public virtual IAsyncResult BeginConnect( 
   string server,
   int serverPort,
   string client,
   int clientPortMin,
   int clientPortMax,
   object state
);

[C++]
[DescriptionAttribute("Connect to a server asynchronously. The EndConnect event is raised when completed.")]
public: virtual IAsyncResult* BeginConnect( 
   string* server,
   int serverPort,
   string* client,
   int clientPortMin,
   int clientPortMax,
   Object* state
) 

[C++/CLI]
[DescriptionAttribute("Connect to a server asynchronously. The EndConnect event is raised when completed.")]
public:
virtual IAsyncResult^ BeginConnect( 
   String^ server,
   int serverPort,
   String^ client,
   int clientPortMin,
   int clientPortMax,
   Object^ state
) 

Parameters

server

Remote hostname or address in dot notation.

serverPort

Remote port, a number between 1 and 65535, inclusive.

client

Optional local hostname or address in dot notation. Use "" as default.

clientPortMin

The minimum client port number to use as a local interface.

clientPortMax

The maximim client port number to use as a local interface.

state

User state information.

Return Type

An IAsyncResult that represents the asynchronous operation, which could still be pending.

Exceptions

Remarks

Use this method if you wish to connect to a host transparently with minimal application impact, as execution occurs on another thread. This method begins to asynchronously connect to the server. Upon completion (on both success and failure) the EndConnect event is raised. An EventArgs object is passed into this event, containing information about the event. If the connection succeeds, the ConnectedChanged event is raised. Once the connection has been made, you can send and receive data from the remote device.

If you are using the Tcp component as a reference, you must "wire up" the event yourself. This involves creating a method as the event handler that implements the EventHandler delegate.

For more information on implementing and handling events using PowerTCP.NET, see the topic, Using Events In PowerTCP.

To connect synchronously, use the Connect method.

Requirements

Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family

See Also

Tcp Class  | Tcp Members  | Overload List