NOTE : the problem is when getting the file size of the file to download in my case the size of party,csv, Dim length As Long = theResponse.ContentLength. For above given is the ftp Url am passing to download file, here party.csv is the file to download.Dim length As Long = theResponse.ContentLength getting -1.If Me.BackgroundWorker1.CancellationPending Thenĭim completeDelegate As New DownloadCompleteSafe(AddressOf DownloadComplete) If readings >= 5 Then 'For increase precision, the speed it's calculated only every five ciclesĬurrentspeed = 20480 / (speedtimer.ElapsedMilliseconds / 1000) WriteStream.Write(readBytes, 0, bytesread) Me.Invoke(safedelegate, length, nRead, percent, currentspeed) If BackgroundWorker1.CancellationPending Then 'If user abort downloadĭim bytesread As Integer = (readBytes, 0, 4096)ĭim percent As Short = (nRead * 100) / length 'Replacement for Stream.Position (webResponse stream doesn't support seek) Me.Invoke(safedelegate, length, 0, 0, 0) 'Invoke the TreadsafeDelegateĭim writeStream As New IO.FileStream(Me.whereToSave, IO.FileMode.Create) "2) Remote server error", "Error", MessageBoxButtons.OK, MessageBoxIcon.Error)ĭim cancelDelegate As New DownloadCompleteSafe(AddressOf DownloadComplete)ĭim length As Long = theResponse.ContentLength 'Size of the response (in bytes)ĭim safedelegate As New ChangeTextsSafe(AddressOf ChangeTexts) "1) File doesn't exist" & ControlChars.CrLf & _ Possible causes:" & ControlChars.CrLf & _ You also need to potentially consider how many individual blocks/clusters would be used (and overhead for a directory entry), and any compression that the operating system may supply, but it's not clear from the. at least in higher level file system terms. MessageBox.Show("An error occurred while downloading file. Um, yes: int length byteArray.Length A byte in memory would be a byte on disk. TheRequest = WebRequest.Create(Me.txtFileName.Text) Trying to download file from a FTP to get download progress i have planned to implement backgroundWorker,the following code will display the download progress,speed,amount of kb downloading in the UIįollowing is the code i wrote in backgroundWorker_doWork 'Creating the request and getting the response The code from the other answer does not check the correct size of the file: Dim myFile As New FileInfo('file.txt') Dim sizeInBytes As Long MyFile.Length Try this code instead.
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