Question

I developed an application wchich is using sockets to connect with several servers. The application works fine with WI-Fi connection but crashes on 3g connection (of course on real device, on emulator everything works fine). I cannot debug it due to the fact that it works wken phone is connected to PC. How to handle this problem?
Thanks in advance

Answer 1

Subscribe to both Application.UnhandledException (for UI thread exceptions) and AppDomain.Current.UnhandledException (for all unhandled exceptions) and try to write to a file before your process is terminated.

After the application crashes, use the ISETool command line to copy the data back to your machine.

Application.Current.UnhandledException += (s,e) => 
    WriteExceptionFast(e.ExceptionObject, "ApplicationUnhandled");

AppDomain.Current.UnhandledException += (s,e) => 
    WriteExceptionFast(e.ExceptionObject, "AppDomainUnhandled");

private void WriteExceptionFast(Exception ex, String name)
{
    string filename = Path.ChangeExtension(name, ".log");

    using (var store = IsolatedStorageFile.GetUserStoreForApplication())
    using (var stream = store.CreateFile(filename))
    using (var writer = new StreamWriter(stream))
    {
        writer.WriteLine(ex.ToString());
        writer.Flush();
    }
}