Business.PlayerBusiness.RunPlayerAsync C# (CSharp) Метод

        public async Task RunPlayerAsync(string fileName) {
            player.AllowClose = false;
            player.Show();
            IsStarted = true;
            bool IsDownloaded = false;
            if (fileName != null)
                await SetNextVideoFileAsync(PlayerMode.Manual, fileName).ConfigureAwait(false);
            else
                IsDownloaded = await SelectNextVideoAsync(0, false).ConfigureAwait(false);
            if (!IsDownloaded) {
                await Task.Delay(1000).ConfigureAwait(false);
                await PlayNextVideoAsync().ConfigureAwait(false);
            }
        }