Test Page selectpicker class

Problems:

data-bindings with Server Connect Action:


Select-field 1a with class "selectpicker":
Select-field 2a with class "selectpicker":
Select-field 2a without class "selectpicker":

 

Select-field 1b without class "selectpicker":
Select-field 2b without class "selectpicker":


Link to Server Actions File

So, I figured out that filtering works if the GET parameter in the Query Options has the same name as the field name in the database table which will be filtered. That works but for me the explanation in http://www.dmxzone.com/go/32616/dynamic-dependant-drop-down-lists (0:52) wasn't clear enough at that point.