How to call an extension method without using

Question

using System;

class Runner
{
    static void Main()
    {
        A a = new A();
        // how to say a.PrintStuff() without a \'using\'
        Console.Read();
           


        

Answer 1

It needs the using to know where the function lives. One example of this in Linq. Without the System.Linq using - you won't have linq enabled for any of your IEnumerable<T>'s

However, you can define the extension method in the same namespace as the caller to avoid putting in a using. This approach will however not work if it's needed in many namespaces