static void Main(string[] args)
{
int option = 10;
Students students = new Students(0);
while (option != 0)
{
SortCallback sortCallback = null;
Console.Clear();
Console.WriteLine("Options: ");
Console.WriteLine("1. Load students.");
Console.WriteLine("2. Display students.");
Console.WriteLine("3. Sort students by id.");
Console.WriteLine("4. Sort students by name.");
Console.WriteLine("5. Sort students by faculty.");
Console.WriteLine("0. Close program.");
Console.WriteLine("\n-------------------------------------------------------------");
switch (option)
{
case 1:
Console.WriteLine("Type in number of students");
int.TryParse(Console.ReadLine(), out int arrayLength);
students = new Students(arrayLength);
for (int i = 0; i < arrayLength; i++)
{
Console.WriteLine("Type in attributes of student with number: " + (i + 1));
Console.Write("Id: ");
int.TryParse(Console.ReadLine(), out int id);
Console.Write("Name: ");
string name = Console.ReadLine();
Console.Write("Faculty: ");
Faculty.TryParse(Console.ReadLine(), out Faculty f);
Student s = new Student(id, name, f);
students.AddStudent(s);
}
break;
case 2:
students.WriteStudents();
break;
case 3:
sortCallback = students.SortById;
break;
case 4:
sortCallback = students.SortByName;
break;
case 5:
sortCallback = students.SortByFaculty;
break;
}
sortCallback?.Invoke();
Console.WriteLine("-------------------------------------------------------------");
Console.WriteLine("\nChoose an option: ");
int.TryParse(Console.ReadLine(), out option);
}
}
public JSArray <T> Sort(SortCallback callback)
{
JSArray <T> ret = new JSArray <T>();
T a = this[0];
T b;
for (int i = 1; i < Count; i++)
{
b = this[i];
int result = callback(a, b);
if (result == -1) // a is pushed into array
{
ret.Add(a);
a = b;
}
else if (result == 1) // b is pushed into array
{
ret.Add(b);
}
else // both are pushed into array
{
ret.Add(a);
ret.Add(b);
if (i < Count - 1)
{
a = this[++i];
}
}
}
ret.Add(a);
return(ret);
}
/// <summary>
/// Set a user callback as sorting function
/// </summary>
/// <param name="cb">SortCallback</param>
public void SetSortCallback(SortCallback cb)
{
if (_sortCallback != cb)
{
_sortCallback = cb;
if (_sortEnabled && !d_initialising)
{
SortList();
}
HandleUpdatedItemData(true);
}
}
