protected virtual void OnEnable()
{
if (m_TreeViewState == null)
{
m_TreeViewState = new TreeViewState();
}
m_SimpleTreeView = new SimpleTreeView(m_TreeViewState);
m_SimpleTreeView.onItemSelect = OnItemSelect;
m_SimpleTreeView.onItemClick = OnItemClick;
m_SimpleTreeView.onItemDoubleClick = OnItemDoubleClick;
m_SimpleTreeView.Items = m_ItemNames;
m_SimpleTreeView.Reload();
}