private void ChildrenOnCollectionChanged(object? sender, NotifyCollectionChangedEventArgs e)
{
if (e.Action == NotifyCollectionChangedAction.Add)
foreach (XMLEntity? item in e.NewItems)
item!.ParentElement = this;
ChildrenChangedRecursive?.Invoke(this, e);
ChildrenChangedDirect?.Invoke(this, e);
ParentElement?.NotifyChildChanged();
}
private void NotifyChildChanged()
{
ChildrenChangedRecursive?.Invoke(this, new EventArgs());
ParentElement?.NotifyChildChanged();
}