[2005] Check remote file exists

[Bulldog]

I implemented some code I found elsewhere on this forum to check for the existence of a remote file.

Public Function IsFileAvailable(ByVal FileLink As String) As Boolean
        Dim objUrl As New System.Uri(FileLink)
        Dim objWebReq As System.Net.WebRequest
        Dim objResp As System.Net.WebResponse
        objWebReq = System.Net.WebRequest.Create(objUrl)
        Try
            objResp = objWebReq.GetResponse
            objResp.Close()
            objWebReq = Nothing
            Return True
        Catch ex As Exception
            objWebReq = Nothing
            Return False
        End Try
    End Function

But if I search for a remote file that I know does not exist, I get a 404 error response and the function bombs out, it does not jump to the Catch? Can anyone see what Im doing wrong?

[Bulldog]

I just noticed that it does throw the exception if I build and run the app outside of the IDE. Is there an option I should be setting?

[~*McoreD*~]

Hi,

I did try your code with one more line inside the Try block (though it worked for me without that change).

Public Function IsFileAvailable(ByVal FileLink As String) As Boolean
        Dim objUrl As New System.Uri(FileLink)
        Dim objWebReq As System.Net.WebRequest
        Dim objResp As System.Net.WebResponse
        Try
            objWebReq = System.Net.WebRequest.Create(objUrl)
            objResp = objWebReq.GetResponse
            objResp.Close()
            objWebReq = Nothing
            Return True
        Catch ex As Exception
            objWebReq = Nothing
            Return False
        End Try
    End Function

Debugged via IDE and didn't find any problem.