public void Add(Item child)
{
ValidateNewChild(child);
child.CreateHandle(true);
flex_item_add(item, child.item);
notify_changed = true;
}
public void InsertAt(int index, Item child)
{
ValidateNewChild(child);
ValidateIndex(index, true);
child.CreateHandle(true);
flex_item_insert(item, index, child.item);
notify_changed = true;
}
public Item RemoveAt(int index)
{
ValidateIndex(index, false);
IntPtr child_item = flex_item_delete(item, index);
Item child = ReleaseHandleForItem(child_item, false);
child.CreateHandle(false);
notify_changed = true;
return(child);
}
