public TreeRow selectToEnd(boolean extend) {
		TreeRow scrollTo = null;
		if (mRoot.getChildCount() > 0) {
			scrollTo = getLastDisclosedRow();
			if (extend && !mSelectedRows.isEmpty()) {
				if (mAnchorRow == null) {
					mAnchorRow = getFirstSelectedRow();
				}
				select(mAnchorRow, scrollTo, true);
			} else {
				select(scrollTo, false);
			}
		}
		return scrollTo;
	}