IO.Directory.Exists and UNC

[peet]

Hi,
have a problem when running this :

If IO.Directory.Exists("\\192.168.132.151\common\test\") Then

When the ip does not exist on my network the test takes forever and halts my application for 60secs.

I want my application to continue quicker than that.

anyone have any suggestions on how to get around this ?

peet

[peet]

Thanks sevenhalo

I'll give it a go.

peet

[eyeRmonkey]

Ummm. Did sevenhalo just delete his post? I just saw it here. Weird.

[sevenhalo]

I did

I made a mistake, the DNS will resolve it even if it's not an assigned number. My array length validation will always return 1 or more, it'll just take longer if it's not assigned.

I'm looking into this a little further

[peet]

oh

in that case dont mind my private message

peet

[Hack]

I did

I made a mistake, the DNS will resolve it even if it's not an assigned number. My array length validation will always return 1 or more, it'll just take longer if it's not assigned.

I'm looking into this a little further

I'm glad you caught it. I was about to post almost the same thing.

[sevenhalo]

This seems ok...

Private Function IsRealIP(ByVal strIn As String) As Boolean
        'PRE:  strIN is an ip in string format
 
        Dim tcp As New System.Net.Sockets.TcpClient
 
        Try
            tcp.Connect(System.Net.Dns.GetHostByAddress(System.Net.IPAddress.Parse(strIn)).HostName, 80)
            tcp.Close()
            Return True
        Catch ex As Exception
            Return False
        End Try
    End Function

If this is .Net 05, I'm sure there's some really cool way of doing it, but as far as 1.1 and 03 goes... This is the best I could come up with.

[peet]

Thanks for taking the time

Its .net 03, we wont be going for 05 for quite a while yet. Need our 3.rd party components to be 100% before we take the step into the world of fast sexy gui

peet

[peet]

If IsRealIP("192.168.132.151") Then
            If IO.Directory.Exists("\\192.168.132.151\felles\TMUNA") Then
                Dim sr As New IO.StreamWriter("\\192.168.132.151\felles\TMUNA\TmMv2Version.txt")
                sr.WriteLine(Application.ProductVersion)
                sr.Close()
            Else
                Debug.WriteLine("Can not write version number to 192.168.132.151!")
            End If
        End If

wow went from 60 to 6 secs.

i can live with that

thanks again.

peet