C# Language Tutorial => A simple indexer

Download C# Language (PDF)

Fastest Entity Framework Extensions

Example

class Foo
{
    private string[] cities = new[] { "Paris", "London", "Berlin" };

    public string this[int index]
    {
        get {
            return cities[index];
        }
        set {
            cities[index] = value;
        }
    }
}

Usage:

    var foo = new Foo();

    // access a value    
    string berlin = foo[2];

    // assign a value
    foo[0] = "Rome";

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