I have a downladed file from ssh but it takes 50 seconds to complete the download - vb.net

Question

I am using vb.net to download a file and using Tamir.SharpSsh which works well except its slow it takes about 50 seconds to download a 3.5 kb file. My Question is How would I best put a wait function in for 2 mins to ensure the file is downloaded.
Public Function DownloadPricat() As Boolean
Dim retVal As Boolean
Dim PRICAT_CSV As String
Dim sfilename As String = ""
Dim ifilename As String
utils = New ThreeSoftware.Configuration.Utilities.utilConfigurationLoader("CONFIGURATION FILES\GEMINI RELATED\SkechersImport.ini")
Hostname = utils.GetIniSetting("SSH SECTION", "SSH_HOST", "")
username = utils.GetIniSetting("SSH SECTION", "SSH_USERNAME", "")
passsword = utils.GetIniSetting("SSH SECTION", "SSH_PASSWORD", "")
port = utils.GetIniSetting("SSH SECTION", "SSH_PORT", "")
HomeDirectoy = utils.GetIniSetting("SSH SECTION", "SSH_REMOTE_DIRECTORY", "")
transfer = New wcSFtp(Hostname, Integer.Parse(port), username, passsword)
PRICAT_CSV = utils.GetIniSetting("PATHS SECTION", "PRICAT_CSV", "")
sfilename = utils.GetIniSetting("PATHS SECTION", "PRICAT_FILENAME", "")
ifilename = PRICAT_CSV & "\" & sfilename
If transfer.getFile(HomeDirectoy & "Pricat.edi", ifilename) = True Then
MsgBox("Download Complete", vbInformation, "Import")
retVal = True
Else
retVal = False
End If
End Function
Get File is simply this
Public Function getFile(ByVal remotePath As String, ByVal localFile As String) As Boolean
Try
transfer = New Sftp(Me._hostname, Me._username, Me._password)
transfer.Connect(Me._port)
transfer.Get(remotePath, localFile)
transfer.Close()
Return True
Catch ex As Exception
Debug.Print("Error downloading file: " & ex.ToString)
Return False
End Try
End Function

Answer 1

Put the whole download into a backgroundworker's DoWork() function and add the Boolean result as the result-variable of the eventargs variable.
Then handle the RunWorkerCompleted() event of the backgroundworker and perform whatever task you want to happen after the download from there. That way you make sure the download is actually finished.
Public Class Form1
Private WithEvents LazyBGW As New System.ComponentModel.BackgroundWorker
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
'Initiate the backgroundworker. It runs in another thread.
LazyBGW.RunWorkerAsync()
End Sub
Private Sub LazyBGW_DoWork(sender As Object, e As System.ComponentModel.DoWorkEventArgs) Handles LazyBGW.DoWork
'This code runs in the BGW-Thread
'Perform the whole download task here or just call your
e.Result = DownloadPricat()
'Work is done, put results in the eventargs-variable for further processing
End Sub
Private Sub LazyBGW_RunWorkerCompleted(sender As Object, e As System.ComponentModel.RunWorkerCompletedEventArgs) Handles LazyBGW.RunWorkerCompleted
'This code runs in the UI-Thread
Dim results As Boolean = CBool(e.Result)
MessageBox.Show("The worker is done and our result is: " & results.ToString)
End Sub
End Class
Edit:
In a console app you can use a Task:
Module Module1
Private Function DownloadPricat() As Boolean
Threading.Thread.Sleep(10000)
Return True
End Function
Sub Main()
Dim DLTask As New System.Threading.Tasks.Task(Of Boolean)(Function() DownloadPricat())
DLTask.Start()
Dim ThisTime As Date = Date.Now
Console.Write("Downloading")
While DLTask.IsCompleted = False AndAlso DLTask.IsCanceled = False AndAlso DLTask.IsFaulted = False
If (Date.Now - ThisTime).TotalSeconds > 1 Then
Console.Write(".")
ThisTime = Date.Now
End If
End While
Console.Write("Done.")
End Sub
End Module