Extension Methods
- This is a feature of C# 3.0.
Extension methods are a form of syntactic sugar providing the illusion of adding new methods to the existing class outside its definition. In practice, an extension method is a static method that is callable as if it were an instance method; the receiver of the call is bound to the first parameter of the method, decorated with keyword this:
public static class StringExtensions { public static string Left(this string s, int n) { return s.Substring(0, n); } } string s = "foo"; s.Left(3); // same as StringExtensions.Left(s, 3);See also
- Decorator pattern
Read more about this topic: C Sharp Syntax
Famous quotes containing the words extension and/or methods:
“We are now a nation of people in daily contact with strangers. Thanks to mass transportation, school administrators and teachers often live many miles from the neighborhood schoolhouse. They are no longer in daily informal contact with parents, ministers, and other institution leaders . . . [and are] no longer a natural extension of parental authority.”
—James P. Comer (20th century)
“We can best help you to prevent war not by repeating your words and following your methods but by finding new words and creating new methods.”
—Virginia Woolf (1882–1941)