Extension Methods Discoverability : Extension Method « LINQ « C# / CSharp Tutorial

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C# / CSharp Tutorial » LINQ » Extension Method 
22.40.3.Extension Methods Discoverability
using System;

class Class1 {
}

class Class2 {
    public void Method1(string s) {
        Console.WriteLine("Class2.Method1");
    }
}

class Class3 {
    public void Method1(object o) {
        Console.WriteLine("Class3.Method1");
    }
}

class Class4 {
    public void Method1(int i) {
        Console.WriteLine("Class4.Method1");
    }
}

static class Extensions {
    static public void Method1(this object o, int i) {
        Console.WriteLine("Extensions.Method1");
    }

    static void Main() {
        new Class1().Method1(12)// Extensions.Method1 is called
        new Class2().Method1(12)// Extensions.Method1 is called
        new Class3().Method1(12)// Class3.Method1 is called
        new Class4().Method1(12)// Class4.Method1 is called
    }
}
22.40.Extension Method
22.40.1.Extension method for integer
22.40.2.Add Extension method
22.40.3.Extension Methods Discoverability
22.40.4.Object Initializer
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