public void Delete(Assignment assignment)
{
var assignmentForDeletion = AllAssignments.Find(a => a.Id == assignment.Id);
AllAssignments.Remove(assignmentForDeletion);
Serialize();
GetAllAssignments();
}
public void Change(Assignment assignment)
{
var assignmentToChange = AllAssignments.Find(u => u.Id == assignment.Id);
if (AllAssignments.Any(u => u.Name == assignment.Name))
{
throw new InvalidOperationException("AssignmentName is already used");
}
AllAssignments.Remove(assignmentToChange);
AllAssignments.Add(assignment);
Serialize();
GetAllAssignments();
}
public void Add(Assignment assignment)
{
AllAssignments.Add(assignment);
Serialize();
GetAllAssignments();
}