I am trying to create a simple cascading parameter whihc I cannot get working. I am hoping that someone can spot the error in my configuration. I created an Input Control called element_class as a "Single Select Query" type input control. It runs the following query select id as element_id, name as element_name from element_class to populate the selection list. The value column is "element_id" and the Visible Query Columns is "element_name" This list populates successfully The second Input Control is called "filtered_model_element". It is also a "Single Select Query" type input control. The Query it runs is select id as model_element_id , name as model_element_name from model_element where element_class = $P{element_class} and entity_status is null This second input control does not populate when I select something form the first. I see the visual icon showing that the server is doing something but the list stays empty. Thank you in advance for your time. Post Edited by lovanc at 04/27/2011 13:43