How to: Upload a File in Visual Basic

Visual Studio 2013

Other Versions

The UploadFile method can be used to upload a file and store it to a remote location. If the ShowUI parameter is set to True, a dialog box is displayed that shows the progress of the download and allows users to cancel the operation.

To upload a file

• Use the UploadFile method to upload a file, specifying the source file's location and the target directory location as a string or URI (Uniform Resource Identifier).This example uploads the file Order.txt tohttp://www.cohowinery.com/uploads.aspx.
  VB

  My.Computer.Network.UploadFile(
    "C:\My Documents\Order.txt",
    "http://www.cohowinery.com/upload.aspx")
  

To upload a file and show the progress of the operation

• Use the UploadFile method to upload a file, specifying the source file's location and the target directory location as a string or URI. This example uploads the file Order.txt tohttp://www.cohowinery.com/uploads.aspx without supplying a user name or password, shows the progress of the upload, and has a time-out interval of 500 milliseconds.
  VB

  My.Computer.Network.UploadFile(
    "C:\My Documents\Order.txt",
    "http://www.cohowinery.com/upload.aspx", "", "", True, 500)
  

To upload a file, supplying a user name and password

• Use the UploadFile method to upload a file, specifying the source file's location and the target directory location as a string or URI, and specifying the user name and the password. This example uploads the fileOrder.txt to http://www.cohowinery.com/uploads.aspx, supplying the user name anonymous and a blank password.
  VB

  My.Computer.Network.UploadFile(
    "C:\My Documents\Order.txt",
    "http://www.cohowinery.com/upload.aspx", "anonymous", "")
  

Robust Programming

The following conditions may throw an exception:

• The local file path is not valid (ArgumentException).
• Authentication failed (SecurityException).
• The connection timed out (TimeoutException).