Le Le mieux que j'ai trouvé est que vous devez essayer d'établir une connexion.
Voici le code que j'ai stocké:
private const int RETRY = 3;
public bool Reachable(Uri Address, string responseExpected) {
for (int i = 0; i < RETRY; i++) {
try {
WebRequest req = WebRequest.Create(Address);
req.Method = "GET";
using (WebResponse rsvp = req.GetResponse()) {
using (Stream s = rsvp.GetResponseStream()) {
using (StreamReader r = new StreamReader(s)) {
string text = r.ReadToEnd();
r.Close();
if ((String.IsNullOrEmpty(responseExpected)) || (-1 < text.IndexOf(responseExpected))) {
return true;
}
}
}
}
} catch (Exception err) {
#if DEBUG
Debug.WriteLine("Url: " + Address.ToString());
Debug.WriteLine(err.Message);
#endif
}
}
return false;
}