/// <summary>
/// изтрива конкретния преподавател
/// </summary>
private void DeleteCurrentLecturer(object obj)
{
// изтриване в базата
databaseService.DeleteUser(selectedLecturer);
// изтриване в xml
XDocument doc = XDocument.Load(XmlDatabase.PathSystData);
doc.Descendants("Users")
.Descendants("Lecturer")
.Where(x => (string)x.Element("PersonalNumber") == selectedLecturer.PersonalNumber)
.Remove();
doc.Save(XmlDatabase.PathSystData);
// изтриване от колекцията
CollectionDataService.Instance.Lecturers.Remove(selectedLecturer);
Lecturers.Remove(selectedLecturer);
if (Lecturers.Count < 1)
{
SelectedLectViewModel.FirstName = string.Empty;
SelectedLectViewModel.LastName = string.Empty;
SelectedLectViewModel.PersonalNumber = string.Empty;
SelectedLectViewModel.Gender = string.Empty;
SelectedLectViewModel.Title = string.Empty;
SelectedLectViewModel.Faculty = string.Empty;
SelectedLectViewModel.Region = string.Empty;
SelectedLectViewModel.BirthDate = string.Empty;
Image = null;
}
}
private void DeleteCurrentLecturer(object obj)
{
var view = CollectionViewSource.GetDefaultView(Lecturers);
LecturerModel selectedLecturer = view.CurrentItem as LecturerModel;
Lecturers.Remove(selectedLecturer);
}
public void RemoveLecturer(Lecturer lecturer)
{
Lecturers.Remove(lecturer);
foreach (var classRecord in ClassRecords)
{
if (classRecord.Lecturer == lecturer)
{
classRecord.Lecturer = null;
}
}
}
private static void Main(string[] args)
{
try
{
//Declare Variables
int select;
var end = true;
do
{
//menu
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Select");
Console.WriteLine("-------------------------------------------");
Console.WriteLine("1. To add a Student");
Console.WriteLine("2. To remove a Student");
Console.WriteLine("-------------------------------------------");
Console.WriteLine("3. To add a Lecturer");
Console.WriteLine("4. To remove a Lecturer");
Console.WriteLine("-------------------------------------------");
Console.WriteLine("5. Illustrate details of all Students");
Console.WriteLine("6. Illustrate the names of all Lecturers");
Console.WriteLine("--------------------------------------------");
Console.WriteLine("7. To find a Student via Student Number");
Console.WriteLine("8. To find a Lecturer via staffId");
Console.WriteLine("--------------------------------------------");
Console.WriteLine("9. To quit");
Console.WriteLine("--------------------------------------------");
int.TryParse(Console.ReadLine(), out select);
switch (select)
{
case 1:
AddStudent();
break;
case 2:
Console.ForegroundColor = ConsoleColor.DarkGreen;
Console.WriteLine("Enter Student Number (Starts with S followed by three numbers)");
var studentid = Console.ReadLine();
Console.WriteLine(Students.Remove(studentid) ? "***Student removed***" : "***Student not removed***");
break;
case 3:
AddLecturer();
break;
case 4:
Console.ForegroundColor = ConsoleColor.DarkGreen;
Console.WriteLine("Enter Lecturer id (Starts with L followed by three numbers)");
var lecturerid = Console.ReadLine();
Console.WriteLine(Lecturers.Remove(lecturerid)
? "***Lecturer removed***"
: "***Lecturer not removed***");
break;
case 5:
ShowStudents();
break;
case 6:
ShowLecturers();
break;
case 7:
Console.WriteLine("Enter Student Number");
var number = Console.ReadLine();
if (Students.Contains(number))
{
Console.WriteLine(
"Student Present, press R to see student details or Any other key to exit");
// Nested if to illustrate details
if (Console.ReadLine() == "R")
{
ShowStudents(number);
}
else
{
break;
}
}
else
{
Console.WriteLine("Student not Present");
}
break;
case 8:
Console.WriteLine("Enter Lecturer Number");
var lecturernumber = Console.ReadLine();
if (Lecturers.Contains(lecturernumber))
{
Console.WriteLine(
"Lecturer found, press R to see lecturer details or any Keys to exit");
// Nested if to illustrate details
if (Console.ReadLine() == "R")
{
ShowLecturers(lecturernumber);
}
else
{
break;
}
}
else
{
Console.WriteLine("Lecturer not present");
}
break;
case 9:
end = false;
break;
default:
Console.WriteLine("Invalid option selected");
break;
}
} while (end);
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
Console.BackgroundColor = ConsoleColor.DarkGreen;
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Press Any key to exit....");
Console.ReadKey();
}