EntitiesInfoWindow.xaml の相互作用ロジック
Inheritance: System.Windows.Window
 public static EntitiesInfoWindow ShowVideoInfo(Entities entities)
 {
     var w = new EntitiesInfoWindow();
     w.DataSet(entities);
     w.Show();
     return w;
 }
        public static EntitiesInfoWindow ShowVideoInfo(Entities entities)
        {
            var w = new EntitiesInfoWindow();

            w.DataSet(entities);
            w.Show();
            return(w);
        }
        private void SucceedUpload(Status status)
        {
            var context = DataContext as StatusWM;

            if (context?.Check == true)
            {
                EntitiesInfoWindow.ShowVideoInfo(status.ExtendedEntities);
            }
        }