public void AddStoryArtist(ObservableChangedCollection <StoryArtistEditModel> storyArtists, int?storyId)
{
if (storyId.HasValue)
{
if (!StoryArtist.Any(s => s.StoryId == storyId.Value))
{
if (!storyArtists.Any(s => s.StoryId == storyId.Value))
{
StoryArtist.Add(new StoryArtistEditModel
{
ArtistId = Id,
StoryId = storyId
});
}
StoryArtist = storyArtists;
}
}
}