I have a radiobutton column in the level of my hierarchical grid, when I set at a higher level I want the child levels to be set from the code behind, but I cannot get precisely the syntax to iterate the mastertable/detailtable associates with the find control. also I am not sure if I am starting form the correct location in code, my starting point is the radiobutton index changed event, also this is not load on demand detail table, the entire grid is loaded at once. thank you in advance for your assistance.