Whenever a tree node is clicked, this trigger function is called.
blockName + '.' + tree element name + '.tree_node_selected'
void cbTree.data.tree_node_selected(char node_id, char parent_id, char node_type) {
:Session.selectedNodeId = node_id;
:Session.selectedNodeParentId = parent_id;
/* message('node_id : ' || node_id || '. node_type : ' || node_type); */
if (node_id == 'no_region') then
show_page('locations_grid.frmx');
end if;
hide_block('countries');
hide_block('provinces');
hide_block('counties');
if (node_type == 'R') then
refresh_block('countries', 'region_id = :node_id');
show_block('countries');
end if;
if (node_type == 'C') then
refresh_block('provinces', 'country_id = :node_id');
show_block('provinces');
end if;
if (node_type == 'P') then
refresh_block('counties', 'province_id = :node_id');
show_block('counties');
end if;
}