Can method parameters be dynamic in C#

Question

In c# 4.0, are dynamic method parameters possible, like in the following code?

public string MakeItQuack(dynamic duck)
{
  string quack = duck.Quack();
  ret         


        

Answer 1

Yes, you can do that. As stated in C# 4.0 specification, the grammar is extended to support dynamic wherever a type is expected:

type:
       ...
      dynamic

This includes parameter definitions, of course.