NaturalGroundingPlayer.EditVideoWindow.SaveChanges C# (CSharp) Method

        private bool SaveChanges() {
            SaveButton.Focus();
            video.Artist = video.Artist.Trim();
            video.Album = video.Album.Trim();
            video.Title = video.Title.Trim();
            video.DownloadName = video.DownloadName.Trim();
            video.DownloadUrl = video.DownloadUrl.Trim();
            video.BuyUrl = video.BuyUrl.Trim();

            ErrorText.Text = "";
            if (TitleText.Text.Length == 0) {
                ErrorText.Text = "Title is required.";
                return false;
            }
            if (business.IsTitleDuplicate(video)) {
                ErrorText.Text = "Artist and title already exist in the database.";
                return false;
            }

            // Only update EditedOn when directly editing from the Edit window.
            if (!isPopup)
                video.EditedOn = DateTime.UtcNow;

            ratingBusiness.UpdateChanges();
            business.Save();
            isFormSaved = true;

            // Update grid when in popup mode. Otherwise Callback is called in Window_Closing.
            if (isPopup)
                callback(video);

            return true;
        }