How do I extend a class with c# extension methods? [duplicate]

by

Use an extension method.

Ex:

namespace ExtensionMethods
{
    public static class MyExtensionMethods
    {
        public static DateTime Tomorrow(this DateTime date)
        {
            return date.AddDays(1);
        }    
    }
}

Usage:

DateTime.Now.Tomorrow();

or

AnyObjectOfTypeDateTime.Tomorrow();

More Related Contents:

  1. What are your favorite extension methods for C#? (codeplex.com/extensionoverflow)
  2. Can I add extension methods to an existing static class?
  3. Why is there no ForEach extension method on IEnumerable?
  4. How do I use Moq to mock an extension method?
  5. Does C# have extension properties?
  6. Why is the ‘this’ keyword required to call an extension method from within the extended class
  7. Static extension methods [duplicate]
  8. No type inference with generic extension method
  9. Timeout Pattern – How bad is Thread.Abort really?
  10. Will the dynamic keyword in C#4 support extension methods?
  11. Can I “multiply” a string (in C#)?
  12. Anonymous Types – Are there any distingushing characteristics?
  13. Why can’t I call an extension method from a base class of the extended type‏?
  14. Extension methods syntax vs query syntax
  15. Extension method on enumeration, not instance of enumeration
  16. Is it possible to implement mixins in C#?
  17. Resolving extension methods/LINQ ambiguity
  18. What is the performance of the Last() extension method for List?
  19. Extension method priority
  20. How do extension methods work?
  21. Is it appropriate to extend Control to provide consistently safe Invoke/BeginInvoke functionality?
  22. Ambiguous call between two C# extension generic methods one where T:class and other where T:struct
  23. Why doesn’t VS 2008 display extension methods in Intellisense for String class
  24. How to implement left join in JOIN Extension method
  25. How to call extension method which has the same name as an existing method? [duplicate]
  26. F# extension methods in C#
  27. Doesn’t C# Extension Methods allow passing parameters by reference?
  28. Why is it impossible to declare extension methods in a generic static class?
  29. Why are “static” and “this” needed for extension methods, and how is their memory allocated?
  30. What causes “extension methods cannot be dynamically dispatched” here?

Leave a Comment