protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
ServerCollection serverCollection = App.ServerCollection;
serverCollection.Load();
MainListBox.ItemsSource = serverCollection;
serverCollection.GetStatus();
if (serverCollection.Count == 0)
{
AddText.Visibility = System.Windows.Visibility.Visible;
}
else
{
AddText.Visibility = System.Windows.Visibility.Collapsed;
}
}