Question

My app WP7 was not accepted because it fails to load if the internet is not available. I looked for a way to check it and found this command

NetworkInterface.GetIsNetworkAvailable()

But it isn’t working on the emulator and I do not have any device to test it.
Could someone tell me if it returns false if the device is in Airplane mode? If not, how can I check for it?

Thanks,
Oscar

Edit: I also tried with this code:

try
{
    wsClient.CurrenciesCompleted += new EventHandler<CurrencyConversion.CurrenciesCompletedEventArgs>(wsClient_CurrenciesCompleted);
    wsClient.CurrenciesAsync(null);
}
catch
{
     NetworkNotAvailable();
}

But I am not able to catch the exception, I also tried in the wsClient_CurrenciesCompleted method, but also no good.

Where could I test it?

Answer 1

Don’t test for “the internet in general” – test for the service you’ll actually be connecting to. Test for it by trying to connect to it – make some simple, non-destructive request on start-up. Yes, that will take a tiny bit of the user’s data allowance, but:

• You will be warming up the networking stack and making a connection which should end up being kept alive automatically, so future latency will be reduced.
• You could warn the user that they may have limited functionality if the connection fails.