Question

I have this code :

static dynamic Mean (dynamic x, dynamic y)
{
  return (x + y) / 2;
}


static void Main()
{
  int x = 3, y = 5;
  Console.WriteLine (Mean (x, y)); //this is working
}

however the following line failes at runtime :

string s = Mean (3, 5); // Runtime error!

why is that ?

why s can not be set with the dynamic value ?

and if so , why Console.WriteLine (...) did succeed to run with this dynamic value ?

edit

and if if so , how can i make string s = Mean (3, 5); work ?

Answer 1

Because in this case you’re trying to set int value to your string variable.

Console.WriteLine automatically do .ToString() before writing in console. Try this for example.

int x=5;
Console.WriteLine(x);