I have a list of controller names and would then have a list of all actions in a given controller (name, GUID).
The list of all controllers found here.
I was also reading List all the actions on a controller with specific attribute which would match for my purposes as I also need actions with specific attributes. But I have only the name / GUID of the selected controller, not the object itself.
My scenario: the user selects a controller (cascading dropdown-list) and then actions from this controller to configure some access (and links). Therefore I need only the actions that have a custom attribute.