Ru.GameSchool.DataLayer.Repository.ContentType.FixupLevelMaterials C# (CSharp) Méthode

        private void FixupLevelMaterials(object sender, NotifyCollectionChangedEventArgs e)
        {
            if (e.NewItems != null)
            {
                foreach (LevelMaterial item in e.NewItems)
                {
                    item.ContentType = this;
                }
            }
    
            if (e.OldItems != null)
            {
                foreach (LevelMaterial item in e.OldItems)
                {
                    if (ReferenceEquals(item.ContentType, this))
                    {
                        item.ContentType = null;
                    }
                }
            }
        }