How to populate a node reference field based on the selected taxonomy term? I have two content types and one vocabulary:


Service Categories - different categories of jobs. (VOCABULARY as the list is small and does not change)
Service Tasks - tasks that relate to an individual category
Services - record consisting of details related to a service performed


On the services page, I have a have a term reference field that allows the user to select the category of service.  Below that I have a node reference field that I would like to have populate the related task from which to choose once the category has been selected.

Without involving programming, is there a solution to my problem?  I am new to Drupal (using version 7) but am picking up the concepts quickly.
I would accomplish this by arranging your vocabulary like so:


Category 1

Task 1


Task 2

Category 2

Etc.



I would probably just name it Service Tasks, but that's my preference. Then use the hierarchical select module.

Enable the module and it's Taxonomy Select sub-module, then add a term reference to Services using the hierarchical select widget. Now you can choose tasks related to their parent categories without having to make all sorts of references.