_AddChildRows
_AddChildRows(fRootNode, 0, fModel->CountChildren(
if (!_AddChildRows(node, 0, fModel->CountChildren(child), columnCount))
if (!_AddChildRows(fRootNode, 0, fModel->CountChildren(fModel->Root()),
_AddChildRows(node, childIndex, count, fModel->CountColumns());
bool _AddChildRows(TreeTableNode* parentNode,