Can I ignore delegate parameters with lambda syntax?

Question

I am curious why C# allows me to ignore delegate parameters in some cases but not others.

For instance this is permitted:

Action action =          


        

Answer 1

As others said, no, you can't skip declaring the parameters to a lambda. But, for cleanliness, I suggest giving them a name such as _. For example

foo.Click += (_,__) => { ... }

You aren't ignoring them per-se, but you're indicating you don't care what they are and will not use them.