I do it like that. When the data card is loaded, I fill the dropdownlist (1) (with the content of the sldmat file, xml). When I choose a value in (1) the window (2) is shown with all materials for this choice and when I select a line in window (2) the content is copied to the textbox (3).
Now I ask if it possible to do this without window and place the content of (2) directly in another dropdownlist (replacement of textbox (3). I don'know how to change list content on a input card action
This is my code :