System.Action delegate ignore parameter?

Question

I have this:

public event Action<BaseCommodity> OnGatherActionSelected = delegate { };
gmp.OnGatherActionSelected += m_Worker.CharacterActions.StartGatherMaterials; // << takes a parameter

but now i want to use the event to call a method which takes 0 parameters

gmp.OnGatherActionSelected += ParentPanel.RedrawUI; // does not take parameters .. DOES NOT WORK :(

how can i do this?

Answer 1

The easiest option is to add a handler that takes the parameter and ignores it, delegating to the method you want to use:

gmp.OnGatherActionSelected += _ => ParentPanel.RedrawUI();

Answer 2

You can wrap it in a method that takes a parameter:

gmp.OnGatherActionSelected += x => ParentPanel.RedrawUI();