10.4 Members

王朝other·作者佚名  2006-01-10
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10.4 Members

Namespaces and types have members. [Note: The members of an entity are

generally available through the

use of a qualified name that starts with a reference to the entity,

followed by a ... token, followed by the

name of the member. end note]

Members of a type are either declared in the type or inherited from the

base class of the type. When a type

inherits from a base class, all members of the base class, except instance

constructors, destructors, and static

constructors become members of the derived type. The declared accessibility

of a base class member does

not control whether the member is inherited.inheritance extends to any

member that isn.t an instance

constructor, static constructor, or destructor. However, an inherited

member may not be accessible in a

derived type, either because of its declared accessibility (§10.5.1) or

because it is hidden by a declaration in

the type itself (§10.7.1.2).

10.4.1 Namespace members

Namespaces and types that have no enclosing namespace are members of the

global namespace. This

corresponds directly to the names declared in the global declaration space.

Namespaces and types declared within a namespace are members of that

namespace. This corresponds

directly to the names declared in the declaration space of the namespace.

Namespaces have no access restrictions. It is not possible to declare

private, protected, or internal

namespaces, and namespace names are always publicly accessible.

10.4.2 Struct members

The members of a struct are the members declared in the struct and the

members inherited from the struct.s

direct base class System.ValueType and the indirect base class object.

The members of a simple type correspond directly to the members of the

struct type aliased by the simple

type:

. The members of sbyte are the members of the System.SByte struct.

. The members of byte are the members of the System.Byte struct.

. The members of short are the members of the System.Int16 struct.

. The members of ushort are the members of the System.UInt16 struct.

. The members of int are the members of the System.Int32 struct.

. The members of uint are the members of the System.UInt32 struct.

. The members of long are the members of the System.Int64 struct.

Chapter 10 Basic concepts

73

. The members of ulong are the members of the System.UInt64 struct.

. The members of char are the members of the System.Char struct.

. The members of float are the members of the System.Single struct.

. The members of double are the members of the System.Double struct.

. The members of decimal are the members of the System.Decimal struct.

. The members of bool are the members of the System.Boolean struct.

10.4.3 Enumeration members

The members of an enumeration are the constants declared in the enumeration

and the members inherited

from the enumeration.s direct base class System.Enum and the indirect base

classes System.ValueType

and object.

10.4.4 Class members

The members of a class are the members declared in the class and the

members inherited from the base class

(except for class object which has no base class). The members inherited

from the base class include the

constants, fields, methods, properties, events, indexers, operators, and

types of the base class, but not the

instance constructors, destructors, and static constructors of the base

class. Base class members are inherited

without regard to their accessibility.

A class declaration may contain declarations of constants, fields, methods,

properties, events, indexers,

operators, instance constructors, destructors, static constructors, and

types.

The members of object and string correspond directly to the members of the

class types they alias:

. The members of object are the members of the System.Object class.

. The members of string are the members of the System.String class.

10.4.5 Interface members

The members of an interface are the members declared in the interface and

in all base interfaces of the

interface. [Note: The members in class object are not, strictly speaking,

members of any interface (§20.2).

However, the members in class object are available via member lookup in any

interface type (§14.3). end

note]

10.4.6 Array members

The members of an array are the members inherited from class System.Array.

10.4.7 Delegate members

The members of a delegate are the members inherited from class

System.Delegate.

 
 
 
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