private void AddSubjectFromList(University_Subject obj)
{
using (_ujc = new UniversityEntities())
{
var currsubj = _ujc.University_Subject.Where(s => s.Subject_ID == obj.Subject_ID).FirstOrDefault();
var currgroup = _ujc.University_Group.Where(t => t.Group_ID == SelectedGroup.Group_ID).FirstOrDefault();
currgroup.University_Subject.Add(currsubj);
_ujc.SaveChanges();
GetCurrentSubjects(SelectedGroup);
GetAllSubjects();
}
}
private void RemoveSubjectFromList(University_Subject obj)
{
using (_ujc = new UniversityEntities())
{
var currsubj = _ujc.University_Subject.Where(s => s.Subject_ID == obj.Subject_ID).FirstOrDefault();
var currteach = _ujc.University_Teacher.Where(t => t.Teacher_ID == SelectedTeacher.Teacher_ID).FirstOrDefault();
currteach.University_Subject.Remove(currsubj);
_ujc.SaveChanges();
GetCurrentSubjects(SelectedTeacher);
GetAllSubjects();
}
}
private void EditSubjectFromDB(University_Subject obj)
{
using (_ujc = new UniversityEntities())
{
var subj = _ujc.University_Subject.Where(s => s.Subject_ID == obj.Subject_ID).FirstOrDefault();
if (subj != null)
{
subj.Subject_Name = CurrentSubject;
_ujc.SaveChanges();
}
UpdateSubjects();
}
}
void DeleteSubjectFromDB(University_Subject parameter)
{
using (_ujc = new UniversityEntities())
{
var tmp = _ujc.University_Subject.Where(s => s.Subject_ID == parameter.Subject_ID).FirstOrDefault();
if (tmp != null)
{
_ujc.University_Subject.Remove(tmp);
_ujc.SaveChanges();
SelectedSubject = null;
UpdateSubjects();
}
}
}
