public void Update() { if (windowPreview != null && windowPreview.IsInitialized) { windowPreview.Update(this); } }
private void btnPreview_Click(object sender, RoutedEventArgs e) { if (windowPreview == null || (windowPreview != null && !windowPreview.IsLoaded)) { windowPreview = new WindowPreview(); windowPreview.Update(this); windowPreview.Show(); } }