signal callback delegate or function to connect
bool callback(gtk.tree_iter.TreeIter iter, gtk.tree_path.TreePath path, gtk.tree_view.TreeView treeView)
iter the tree iter of the row to expand (optional)
path a tree path that points to the row (optional)
treeView the instance the signal is connected to (optional)
Returns false to allow expansion, true to reject
Yes.After to execute callback after default handler, No.After to execute before (default)
Signal ID
Connect to TestExpandRow signal.
The given row is about to be expanded (show its children nodes). Use this signal if you need to control the expandability of individual rows.