public virtual void RemoveCourse(Course course)
{
var p = new UserCourse(this, course);
if (_userCourses.Remove(p))
{
course.Count--;
}
AddEvent(new RemoveCourseEvent(Id));
}
public virtual void AssignCourses(IEnumerable <Course> courses)
{
foreach (var course in courses)
{
var p = new UserCourse(this, course);
if (_userCourses.Add(p))
{
course.Count++;
}
}
}