Does a file exist using the URL

[venerable bede]

Is there anyway in .net to find out if a file exists using its URL as opposed to its physical path ?

[rdove]

I'm not sure if .NET has a better way of checkings links or a better object, but about a year ago my team was faced with a similar problem. We found an XML Object that will simulate a request to a page and return whether it was a valid link or not.

Anyway I hope this works for you:

Set objHTTP = Server.CreateObject("Microsoft.XMLHTTP")
 
objHTTP.Open "get", strURL, False
objHTTP.Send  
httpStatus = objHTTP.status 

If httpStatus <> "200" Then
  'link was not valid
End If

[Magiaus]

What is wrong with doing a MapPath and System.IO.File.Exists(path)?

I'm just curious when and why this is inefficient or won't work. The only time I know of is if you have a client checking for a page. Is that the case?

[venerable bede]

That's exactly the case.