public static void RemoveStudent(int studentid)
{
//var student = new Studentdetails();
Studentdetails SD = db.StudentDetails.Where(SD => SD.StudentId == studentid).Single();
db.StudentDetails.Remove(SD);
db.SaveChanges();
}
public static void Update(Studentdetails UpdateStuddetails)
{
var oldStudentdetails = GetStudName(UpdateStuddetails.StudentId);
oldStudentdetails.StudName = UpdateStuddetails.StudName;
oldStudentdetails.StudGender = UpdateStuddetails.StudGender;
oldStudentdetails.StudEmailAdd = UpdateStuddetails.StudEmailAdd;
oldStudentdetails.StudAddress = UpdateStuddetails.StudAddress;
oldStudentdetails.StudphNum = UpdateStuddetails.StudphNum;
db.SaveChanges();
}
public static Studentdetails AddStudent(string stuname,
string emailaddress,
TypeofGender gender = TypeofGender.Female)
{
var student = new Studentdetails
{
StudName = stuname,
StudEmailAdd = emailaddress,
StudGender = gender,
};
db.StudentDetails.Add(student);
db.SaveChanges();
return(student);
}
static void Main(string[] args)
{
// var studentCurInfo = new studInfo();
//private static List<CourseDetails> courses = new List<CourseDetails>();
var courses = new CourseDetails();
var students = new Studentdetails();
var register = new Registeration();
Console.WriteLine("*********************");
Console.WriteLine("Welcome to School!");
while (true)
{
Console.WriteLine("*********************");
Console.WriteLine("0. Exit");
Console.WriteLine("1. Add New Student");
Console.WriteLine("2. Add Courses");
Console.WriteLine("3. New Registeration");
Console.WriteLine("4. Unregister");
Console.WriteLine("5. Remove Student");
Console.WriteLine("6. View all Students");
// Console.WriteLine("4. Get all Students by email");
Console.WriteLine("Select an option: ");
var option = Console.ReadLine();
switch (option)
{
case "0":
Console.WriteLine("Thank You!!!");
return;
case "1":
Console.WriteLine("Student Name:");
var studName = Console.ReadLine();
Console.WriteLine("Student Email Address:");
var studEmail = Console.ReadLine();
Console.WriteLine("Student Gender:");
//Array of string assign to variable
var studGen = Enum.GetNames(typeof(TypeofGender));
for (var i = 0; i < studGen.Length; i++)
{
Console.WriteLine($"{i}. {studGen[i]}");
}
//Type casting
//Generic methods "<>"
//Read the value asking the enum to parse the string into and then give you the type.
var studGender = Enum.Parse <TypeofGender>(Console.ReadLine());
var studentInfo = School.AddStudent(studName, studEmail, studGender);
Console.WriteLine($"StudID: {studentInfo.StudentId} " +
$" StudName: {studentInfo.StudName} " +
$" Email: {studentInfo.StudEmailAdd} " +
$" StudentGender: {studentInfo.StudGender} ");
break;
case "2":
Console.WriteLine("Description:");
var desc = Console.ReadLine();
Console.WriteLine("courseFee:");
var coursefee = Convert.ToDecimal(Console.ReadLine());
var courseInfo = School.Addcourse(desc, coursefee);
Console.WriteLine($"CourseCode: {courseInfo.CourseCode} " +
$" Description: {courseInfo.Description} " +
$" Fee: {courseInfo.CourseFee:C}");
Console.WriteLine("new course created!");
School.PrintAllcoursedetails();
break;
case "3":
Console.WriteLine("StudentId:");
var studentId = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("CourseCode:");
var coursecode = Convert.ToInt32(Console.ReadLine());
var registerInfo = School.studentRegister(studentId, coursecode);
Console.WriteLine($"StudID: {registerInfo.StudentId} " +
$" CourseCode: {registerInfo.CourseCode} ");
break;
case "4":
Console.WriteLine("Studet Id:");
var studentid = Convert.ToInt32(Console.ReadLine());
Console.WriteLine("CourseCode:");
var courcode = Convert.ToInt32(Console.ReadLine());
School.studentUnRegisterCourse(studentid, courcode);
Console.WriteLine("unregistered student from course.");
break;
case "5":
Console.WriteLine("student ID:");
var studId = Convert.ToInt32(Console.ReadLine());
School.RemoveStudent(studId);
Console.WriteLine("Student Record Deleted!");
break;
case "6":
// School.PrintAllStudentswithcourses();
// School.PrintAllRegisterations();
Console.WriteLine("student ID:");
//var studId1 = Convert.ToInt32(Console.ReadLine());
//School.GetAllCoursesByStudent(studId1);
//
// foreach (var stud in student)
// {
// Console.WriteLine($"SID: {stud.StudentId}, " +
// $"SN: {stud.CourseCode}");
//}
School.GetAllRegisterationforCourses();
break;
case "7":
default:
Console.WriteLine("Invalid option! Try again!");
break;
}
}
}
