public bool Remove(int j)
{
if (j <= 0 && j >= LectList.Count)
{
return(false);
}
LectList.RemoveAt(j);
LecturerListHandlerEventArgs e = new LecturerListHandlerEventArgs(CollectionName, "The lecturer was recently deleted.", LectList[j]);
OnLecturerChanges(e);
return(true);
}
public Lecturer this[int index]
{
get
{
return(LectList.ElementAt(index));
}
set
{
LecturerListHandlerEventArgs e = new LecturerListHandlerEventArgs(CollectionName, "Item of collection was changed.", value);
OnLecturerReferenceChanged(e);
LectList[index] = value;
}
}
public void AddLecturers(params Lecturer[] l)
{
if (LectList == null)
{
LectList = new List <Lecturer>();
}
LectList.AddRange(l);
foreach (var el in l)
{
LecturerListHandlerEventArgs e = new LecturerListHandlerEventArgs(CollectionName, "The lecturer was recently added.", el);
OnLecturerChanges(e);
}
}
public void AddDefaults()
{
if (LectList == null)
{
LectList = new List <Lecturer>();
}
LectList.Add(new Lecturer());
foreach (var el in LectList)
{
LecturerListHandlerEventArgs e = new LecturerListHandlerEventArgs(CollectionName, "The lecturer was recently deleted.", el);
OnLecturerChanges(e);
}
}
protected virtual void OnLecturerReferenceChanged(LecturerListHandlerEventArgs e)
{
LecturerReferenceChanged?.Invoke(this, e);
}
protected virtual void OnLecturerChanges(LecturerListHandlerEventArgs e)
{
LecturersCountChanged?.Invoke(this, e);
}