System.ValueType Class

Summary

Provides the base class for value types.

C# Syntax:

[Serializable] public abstract class ValueType

ValueType overrides the virtual methods from Object with more appropriate implementations for value types. See also Enum, which inherits from ValueType.

Data types are separated into value types and reference types. Value types are either stack-allocated or allocated inline in a structure. Reference types are heap-allocated. Both reference and value types are derived from the ultimate base class Object. In cases where it is necessary for a value type to behave like an object, a wrapper that makes the value type look like a reference object is allocated on the heap, and the value type's value is copied into it. The wrapper is marked so the system knows that it contains a value type. This process is known as boxing, and the reverse process is known as unboxing. Boxing and unboxing allow any type to be treated as an object.

System Namespace | Object | Enum

System.ValueType Member List:

Public Methods

Equals	Overridden: Indicates whether this instance and a specified object are equal.
GetHashCode	Overridden: Returns the hash code for this instance.
GetType (inherited from System.Object)	See base class member description: System.Object.GetType Derived from System.Object, the primary base class for all objects.
ToString	Overridden: Returns the fully qualified type name of this instance.

Protected Constructors

ctor #1

Default constructor. This constructor is called by derived class constructors to initialize state in this type.

Protected Methods

Finalize (inherited from System.Object)	See base class member description: System.Object.Finalize Derived from System.Object, the primary base class for all objects.
MemberwiseClone (inherited from System.Object)	See base class member description: System.Object.MemberwiseClone Derived from System.Object, the primary base class for all objects.

Hierarchy:

• System.Object
• System.ValueType
  • System.ArgIterator
  • System.Boolean
  • System.Byte
  • System.Char
  • System.Collections.DictionaryEntry
  • System.Collections.Specialized.BitVector32
  • System.Collections.Specialized.BitVector32.Section
  • System.Configuration.Assemblies.AssemblyHash
  • System.DateTime
  • System.Decimal
  • System.Diagnostics.SymbolStore.SymbolToken
  • System.Double
  • System.Enum
  • System.Guid
  • System.Int16
  • System.Int32
  • System.Int64
  • System.IntPtr
  • System.Reflection.Emit.EventToken
  • System.Reflection.Emit.FieldToken
  • System.Reflection.Emit.Label
  • System.Reflection.Emit.MethodToken
  • System.Reflection.Emit.OpCode
  • System.Reflection.Emit.ParameterToken
  • System.Reflection.Emit.PropertyToken
  • System.Reflection.Emit.SignatureToken
  • System.Reflection.Emit.StringToken
  • System.Reflection.Emit.TypeToken
  • System.Reflection.InterfaceMapping
  • System.Reflection.ParameterModifier
  • System.Runtime.InteropServices.ArrayWithOffset
  • System.Runtime.InteropServices.GCHandle
  • System.Runtime.InteropServices.HandleRef
  • System.Runtime.Serialization.SerializationEntry
  • System.Runtime.Serialization.StreamingContext
  • System.RuntimeArgumentHandle
  • System.RuntimeFieldHandle
  • System.RuntimeMethodHandle
  • System.RuntimeTypeHandle
  • System.SByte
  • System.Single
  • System.Threading.LockCookie
  • System.Threading.NativeOverlapped
  • System.TimeSpan
  • System.TypedReference
  • System.UInt16
  • System.UInt32
  • System.UInt64
  • System.UIntPtr
  • System.Void

System.ValueType Member Details

Summary:

Default constructor. This constructor is called by derived class constructors to initialize state in this type.

C# Syntax:

protected ValueType();

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Summary

Indicates whether this instance and a specified object are equal.

C# Syntax:

public override bool Equals(    object obj );

obj

Another object to compare to.

Return Value:

true if obj and this instance are the same type and represent the same value; otherwise, false.

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Inherited
See base class member description: System.Object.Finalize

C# Syntax:

~ValueType();

For more information on members inherited from System.Object click on the link above.

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Summary

Returns the hash code for this instance.

C# Syntax:

public override int GetHashCode();

Return Value:

A 32-bit signed integer that is the hash code for this instance.

The ValueType.GetHashCode method applies to types derived from ValueType. One or more fields of the derived type is used to calculate the return value. If one or more of those fields contains a mutable value, the return value might be unpredictable, and unsuitable for use as a key in a hash table.

For more information, see Object.GetHashCode, and Hashtable.

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Inherited
See base class member description: System.Object.GetType

C# Syntax:

public Type GetType();

For more information on members inherited from System.Object click on the link above.

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Inherited
See base class member description: System.Object.MemberwiseClone

C# Syntax:

protected object MemberwiseClone();

For more information on members inherited from System.Object click on the link above.

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Summary

Returns the fully qualified type name of this instance.

C# Syntax:

public override string ToString();

Return Value:

A String containing a fully qualified type name.

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