public async Task <bool> Auth(string login, string password)
{
if (login != null && password != null)
{
LoginResponse loginResponse = await serverWorker.TaskLogin(login, password);
if (loginResponse.IsAuthenticationSuccessful)
{
serverWorker.UserLogin = login;
await Navigation.PushAsync(new TabbedUserPage(serverWorker, systemSettings));
}
else
{
await DisplayAlert("Error", "Incorrect login/password pair", "OK");
}
}
else
{
await DisplayAlert("Error", "Fields cannot be empty", "OK");
}
return(true);
}