partial void DeleteCorequisiteToCourse(CorequisiteToCourse instance);
 partial void UpdateCorequisiteToCourse(CorequisiteToCourse instance);
		private void detach_CorequisiteToCourses(CorequisiteToCourse entity)
		{
			this.SendPropertyChanging();
			entity.Course = null;
		}
 partial void InsertCorequisiteToCourse(CorequisiteToCourse instance);
		private void attach_CorequisiteToCourses(CorequisiteToCourse entity)
		{
			this.SendPropertyChanging();
			entity.Corequisite = this;
		}