by Marco Minerva (translated from Italian by Mike Dodaro)
The .NET Micro Framework does not support extension methods, because it does not contain the ExtensionAttribute class, which indicates that a method is an extension. But, adding this functionality is very simple. First, create this class in the project:
using System; namespace System.Runtime.CompilerServices { [AttributeUsage(AttributeTargets.Assembly | AttributeTargets.Class | AttributeTargets.Method)] public sealed class ExtensionAttribute : Attribute { } }
This allows creation of extension methods in the usual way:
public static class Utils { public static bool StartsWith(this string s, string value) { return s.IndexOf(value) == 0; } public static bool Contains(this string s, string value) { return s.IndexOf(value) > 0; } }
Use the extension as follows:
string nome = "Marco"; bool b1 = nome.StartsWith("M"); // Returns true. bool b2 = nome.Contains("f"); // Returns false.
#1 by Thierry Lecoeur on June 1, 2012 - 8:57 AM
Thank you for code and the blog.