private void ButtonAdd_Click(object sender, RoutedEventArgs e)
{
if (SubscriptionName.Value.Trim() == "" || SubscriptionURI.Value.Trim() == "")
{
return;
}
Subscriptions.Insert(Subscriptions.Count - 1, new Subscription(Main, SubscriptionName.Value, SubscriptionURI.Value, false, DateTime.MinValue));
Main.Save();
Close();
}
