Download stream to file - asp.net

Question

I have a service which provides a stream. This stream should be written to a pdf-file.
I tried this method but it didn't work:
Using hcwHandler As IHealthCareWorkerServiceHandler = Container.CurrentContainer.Resolve(Of IHealthCareWorkerServiceHandler)()
stream = hcwHandler.DownloadPrescription(New DownloadPrescriptionRequest With {
.ProfessionCode = ucSelectProfession.ProfessionCode,
.RizivNumber = ucSelectProfession.Nihdi,
.Culture = language
}).Result
End Using
Dim buffer As Byte() = Encoding.ASCII.GetBytes(stream.ToString())
Using ms As New MemoryStream(buffer)
'write to file
Using file As New FileStream("prescription.pdf", FileMode.Create, FileAccess.Write)
ms.WriteTo(file)
End Using
End Using
I have tried several other solutions as well, but none seemed to work.
I never get a file.
Can anyone help me?

Answer 1

You can read the buffer (if there is data there) in a Using block without MemoryStream (like code below shows) and put a full absolute path like C:\Documents\PdfFolder\prescription.pdf
Using saveFileDialog1 As New SaveFileDialog()
saveFileDialog1.InitialDirectory = "C:\Documents"
saveFileDialog1.RestoreDirectory = True
saveFileDialog1.Filter = "PDF files|*.pdf" ' change here for csv or xls
saveFileDialog1.FileName = "yourDefaultfileName.pdf"
If saveFileDialog1.ShowDialog <> Windows.Forms.DialogResult.Cancel Then
If Len(saveFileDialog1.FileName.Length) > 0 Then
Try
Dim pdfPath As String = System.IO.Path.GetFullPath(saveFileDialog1.FileName)
Using file As New FileStream(pdfPath, FileMode.Create, FileAccess.Write)
file.Write(buffer, 0, buffer.Length)
End Using
MessageBox.Show("Saved in " & pdfPath)
Catch
MsgBox("Not a valid name file.")
End Try
End If
End If
End Using

Answer 2

And here a VB.NET version of How do I save a stream to a file in C#
Using fromWebFileStream As Stream = New StreamReader(yourStreamHere)
Using localFileStream As FileStream = File.Create("C:\Documents\PathTo\File")
'if you aren't at the begin of your stream uncomment this
'fromWebFileStream.Seek(0, SeekOrigin.Begin)
fromWebFileStream.CopyTo(localFileStream)
End Using
End Using