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:
“A dense undergrowth of extension cords sustains my upper world of lights, music, and machines of comfort.”
—Mason Cooley (b. 1927)
“If you want to know the taste of a pear, you must change the pear by eating it yourself.... If you want to know the theory and methods of revolution, you must take part in revolution. All genuine knowledge originates in direct experience.”
—Mao Zedong (1893–1976)