public ActionResult Create(Student student)
{
if (ModelState.IsValid)
{
student.RegistrationId = GenerateStudentRegistrationId(student);
ViewBag.registrationId = student.RegistrationId;
db.Students.Add(student);
db.SaveChanges();
ModelState.Clear();
ViewBag.DepartmentId = new SelectList(db.Departments, "Id", "Code", student.DepartmentId);
return View();
}
ViewBag.DepartmentId = new SelectList(db.Departments, "Id", "Code", student.DepartmentId);
return View(student);
}
public ActionResult Edit(Student student)
{
if (ModelState.IsValid)
{
db.Entry(student).State = EntityState.Modified;
db.SaveChanges();
return RedirectToAction("Index");
}
ViewBag.DepartmentId = new SelectList(db.Departments, "Id", "Code", student.DepartmentId);
return View(student);
}
private string GenerateStudentRegistrationId(Student student)
{
string registrationId = GetDepartmentCode(student.DepartmentId) + "-" + student.Date.Year + "-";
var result = db.Students.Where(s => (s.DepartmentId == student.DepartmentId && s.Date.Year == student.Date.Year)).ToList();
if (!result.Any())
{
registrationId += "001";
}
else
{
string studentRegistrationId = (result.Last().RegistrationId);
studentRegistrationId = (Convert.ToInt32(studentRegistrationId.Substring(studentRegistrationId.Length - 3)) + 1).ToString();
int len = 3 - studentRegistrationId.Length;
for (var i = 0; i <len; i++)
{
studentRegistrationId = "0" + studentRegistrationId;
}
registrationId += studentRegistrationId;
}
return registrationId;
}
private string RegNo(Student student)
{
int id = db.Students.Count(s => (s.DepartmentId == student.DepartmentId)
&& (s.Date.Year == student.Date.Year)) + 1;
Department aDepartment = db.Departments.Where(d => d.DepartmentId == student.DepartmentId).FirstOrDefault();
string registrationId = aDepartment.Code + "-" + student.Date.Year + "-";
string addZero = "";
int len = 3 - id.ToString().Length;
for (int i = 0; i < len; i++)
{
addZero = "0" + addZero;
}
return registrationId + addZero + id;
}
