VB.NET: Delete an uploaded file using DeleteUploadedFile()


  1. Create a new Console Application project and add a web reference.
  2. Copy the entire code below, delete anything written in your application and paste the code there.
  3. Replace the values of the Const lines with your details:
    • Replace MyUsername and MyPassword with your PostalMethods user details.
    • Replace MyFileName with the name of the file, including its extension, as it was given when uploaded.
  4. Start your application. If the response is -3000, the file was deleted. If the response is any other number, check the Web Service Status Codes section.
Imports System.IO
Module module1
    Sub Main()
        Const MyUsername As String = "MyUsername"
        Const MyPassword As String = "MyPassword"
        Const MyFileName As String = "PurchaseInvoice.mht"
        Dim objPM As New com.postalmethods.api.PostalWS()
        Dim lngResult As Long
        ' Invoke the DeleteUploadedFile method
        lngResult = objPM.DeleteUploadedFile( _
                                MyUsername, _
                                MyPassword, _
        ' Check response status
        If lngResult = -3000 Then
            ' If the result code = -3000, the file was deleted.
            Console.WriteLine("File deleted!")
            ' A negative value means an error occurred.
            ' See the PostalMethods Status Codes: http://www.postalmethods.com/statuscodes#webservice.
            Console.WriteLine("An error occurred:" & lngResult)
        End If
        ' In debug mode, the following lines prevent your console application from closing automatically upon termination
        Console.WriteLine("Hit ENTER to terminate application")
    End Sub
End Module