'Declaration
 
Public Overloads Function BeginSendFile( _
   ByVal localFilename As String, _
   ByVal append As Boolean, _
   ByVal callback As AsyncCallback, _
   ByVal state As Object _
) As IAsyncResult

'Usage
 
Dim instance As AsyncFtpClient
Dim localFilename As String
Dim append As Boolean
Dim callback As AsyncCallback
Dim state As Object
Dim value As IAsyncResult
 
value = instance.BeginSendFile(localFilename, append, callback, state)

public IAsyncResult BeginSendFile( 
   string localFilename,
   bool append,
   AsyncCallback callback,
   object state
)

Parameters

localFilename

The path and filename of the local file to send.

append

true if the file should append itself to the remote file if it already exists; false if the remote file should be overwritten.

callback

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

state

An object containing state information for this operation.

Return Value

The file will be sent to the current working folder, using the same filename. If you want to send the file to another location, you could use the BeginChangeCurrentFolder%M:Xceed.Ftp.AsyncFtpClient.EndChangeCurrentFolder(System.IAsyncResult)% methods and/or BeginChangeToParentFolder%M:Xceed.Ftp.AsyncFtpClient.EndChangeToParentFolder(System.IAsyncResult)% methods to change the current working folder.

The current working folder can be retrieved via the BeginGetCurrentFolder%M:Xceed.Ftp.AsyncFtpClient.EndGetCurrentFolder(System.IAsyncResult)% methods.

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

.NET: net5.0, net5.0-windows, net6.0, net6.0-macos, net6.0-windows, net7.0, net7.0-macos, net7.0-windows, net8.0, net8.0-browser, net8.0-macos, net8.0-windows, net9.0, net9.0-browser, net9.0-macos, net9.0-windows, net10.0, net10.0-browser, net10.0-macos, net10.0-windows.

.NET Standard: netstandard2.0, netstandard2.1

.NET Framework: net20, net35, net40, net403, net45, net451, net452, net46, net461, net462, net463, net47, net471, net472, net48, net481.

Reference

AsyncFtpClient Class
AsyncFtpClient Members
Overload List
EndSendFile Method
System.IAsyncResult
EndSendFile Method
System.IAsyncResult