how to use dynamic dropdown (grid search) widget

I have a dataview of Entity’A’ in which I have a table where i am trying to use this dynamic dropdown. i want to populate it with the list of attributes from Entity”B” which has one to many association from entity’A’ to Entity’B’. I do not know how to use this dropdown. its not working right now. it just gives me a empty text area right now. Please help!
1 answers

What you have entered in Attribute (manual) is not a path. It is just an attribute.