file exists for URL

[robszar]

I want to check of a file exists but I can't use IO.fileexists because it's a URL, anyone have an alternative way to accomplish this?

if IO.FileExists("http://sharepointtest/Shared%20Documents/photo.jpg") then
userPic.ImageUrl = "http://sharepointtest/Shared%20Documents/photo.jpg"
end if

 

[jan.jerell.ygot]

Use HttpWebRequest

Do This:

Dim strURL As String
strURL = "http://sharepointtest/Shared%20Documents/photo.jpg"

Dim objStream As Stream
Dim objWebReq As HttpWebRequest
Dim objWebResp As HttpWebResponse

Try
            objWebReq = WebRequest.Create(strURL)
            objWebResp = objWebReq.GetResponse()
            objStream = objWebResp.GetResponseStream()
            userPic.ImageUrl = strURL
Catch ex As Exception
           // File not exists
            Return ex.Message
End Try