private void detach_BlogEntryCategories(BlogEntryCategory entity)
		{
			this.SendPropertyChanging();
			entity.BlogEntry = null;
		}
 partial void DeleteBlogEntryCategory(BlogEntryCategory instance);
 partial void InsertBlogEntryCategory(BlogEntryCategory instance);
 partial void UpdateBlogEntryCategory(BlogEntryCategory instance);
		private void attach_BlogEntryCategories(BlogEntryCategory entity)
		{
			this.SendPropertyChanging();
			entity.BlogCategory = this;
		}