private void detach_CourseInfo(CourseInfo entity)
{
this.SendPropertyChanging();
entity.TeacherInfo = null;
}
partial void DeleteCourseInfo(CourseInfo instance);
partial void UpdateCourseInfo(CourseInfo instance);
partial void InsertCourseInfo(CourseInfo instance);
private void attach_CourseInfo(CourseInfo entity)
{
this.SendPropertyChanging();
entity.ExperimentInfo = this;
}
protected bool IsBooked(StudentInfo student, CourseInfo course)
{
if (LabDB.CourseBookInfo.FirstOrDefault(d => d.StudentInfo == student && d.CourseArrange.CourseInfo == course) != null)
return true;
else return false;
}