'Declaration
 
Public Function BeginSendCustomCommand( _
   ByVal command As String, _
   ByVal callback As AsyncCallback, _
   ByVal state As Object _
) As IAsyncResult

'Usage
 
Dim instance As AsyncFtpClient
Dim command As String
Dim callback As AsyncCallback
Dim state As Object
Dim value As IAsyncResult
 
value = instance.BeginSendCustomCommand(command, callback, state)

public IAsyncResult BeginSendCustomCommand( 
   string command,
   AsyncCallback callback,
   object state
)

Parameters

command

The command to send to the FTP server.

callback

Callback method to be called when the asynchronous operation is completed.

state

An object containing state information for this operation.

Return Value

The BeginSendCustomCommand method is used to send FTP commands. This means that commands you enter using the Windows command-line FTP (such as "dir", "put" or "debug") are not the commands that are actually sent to the FTP server. Although these commands might be recognized by some FTP servers, they are not guaranteed to work!.

When sending a custom FTP command, the local folder separator character will not be replaced by the FtpClient.ServerFolderSeparator to allow the local folder separator character to be sent "as is".

Not all commands are supported by all FTP servers. In order to determine which commands are supported, you can use the BeginSendCustomCommand%M:Xceed.Ftp.AsyncFtpClient.EndSendCustomCommand(System.IAsyncResult)% methods to send the "HELP" command. For example: ftp.SendCustomCommand( "HELP" );.

The BeginSendCustomCommand method does not support custom commands that require a data connection such as STOR (BeginSendFile), RETR (BeginReceiveFile), NLST and LIST (BeginGetRawFolderContents), etc.

When using a callback, the System.IAsyncResult is provided as a parameter. You should call EndSendCustomCommand in that callback. When NOT providing a callback, you should keep the returned IAsyncResult and call EndSendCustomCommand with it when ready to complete. In this later case, the call to EndSendCustomCommand may block until the operation completes.

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

AsyncFtpClient Class
AsyncFtpClient Members