public void InsertAt(int j, GraduateStudet gs)
{
if (ListOfStudents[j] != null)
{
ListOfStudents.Insert(j - 1, gs);
GraduateStudentInserted?.Invoke(this, new GraduateStudentListHandlerEventArgs("ListOfStudents",
$"element was inserted to the {j - 1} posittion of the list", j - 1));
}
else
{
ListOfStudents.Add(gs);
GraduateStudentAdded?.Invoke(this, new GraduateStudentListHandlerEventArgs("ListOfStudents",
"element was added to the end of the list", ListOfStudents.Count));
}
}
public void AddDefaults()
{
/*c допомогою якого можна додати деяке число елементів
* типу GraduateStudent для ініціалізації колекції за замовчуванням; */
int sizedef = 7;
GraduateStudet[] p = new GraduateStudet[sizedef];
for (int i = 0; i < sizedef; i++)
{
GraduateStudet grd = new GraduateStudet();
grd.LastName = grd.LastName + i;
p[i] = grd;
}
ListOfStudents.AddRange(p);
GraduateStudentAdded?.Invoke(this, new GraduateStudentListHandlerEventArgs("ListOfStudents",
"element was added to the end of the list", ListOfStudents.Count));
}
public void AddGraduateStudents(params GraduateStudet[] p)
{
ListOfStudents.AddRange(p);
GraduateStudentAdded?.Invoke(this, new GraduateStudentListHandlerEventArgs("ListOfStudents",
"element was added to the end of the list", ListOfStudents.Count));
}