C# Language Specification

Other function members

Members that contain executable code are collectively known as the function members of a class. The preceding section describes methods, which are the primary kind of function members. This section describes the other kinds of function members supported by C#: constructors, properties, indexers, events, operators, and destructors.

The following table shows a generic class called List, which implements a growable list of objects. The class contains several examples of the most common kinds of function members.

public class List {
const int defaultCapacity = 4;	Constant
T[] items; int count;	Fields
public List(int capacity = defaultCapacity) { items = new T[capacity]; }	Constructors
public int Count { get { return count; } } public int Capacity { get { return items.Length; } set { if (value < count) value = count; if (value != items.Length) { T[] newItems = new T[value]; Array.Copy(items, 0, newItems, 0, count); items = newItems; } } }	Properties

public T this[int index] { get { return items[index]; } set { items[index] = value; OnChanged(); } }	Indexer
public void Add(T item) { if (count == Capacity) Capacity = count * 2; items[count] = item; count++; OnChanged(); } protected virtual void OnChanged() { if (Changed != null) Changed(this, EventArgs.Empty); } public override bool Equals(object other) { return Equals(this, other as List); } static bool Equals(List a, List b) { if (a == null) return b == null; if (b == null || a.count != b.count) return false; for (int i = 0; i < a.count; i++) { if (!object.Equals(a.items[i], b.items[i])) { return false; } } return true; }	Methods
public event EventHandler Changed;	Event
public static bool operator ==(List a, List b) { return Equals(a, b); } public static bool operator !=(List a, List b) { return !Equals(a, b); }	Operators
}

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