Question

Have an Action delegate and trying to use the ternary operator inside of it with lambdas:

Action<string> action = new Action<string>( str => (str == null) ? 
               Console.WriteLine("isnull") : Console.WriteLine("isnotnull")

Gives the old “only assignment, decrement, etc. allowed” error.

Is this possible somehow?

Answer 1

You would have to do it like this:

var action = new Action<string>(str => Console.WriteLine((str == null) ? "isnull" : "isnotnull"));