private void Delete_Click(object sender, EventArgs e)
{
DatabaseHelper help = new DatabaseHelper();
help.DeleteContact(id);
if (ScheduledActionService.Find(ghichu.Id.ToString()) != null)
{
ScheduledActionService.Remove(ghichu.Id.ToString());
}
//NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
NavigationService.GoBack();
}
