TimestampAttribute Class

Definition

Namespace:

System.ComponentModel.DataAnnotations

Assembly:

System.ComponentModel.Annotations.dll

Specifies the data type of the column as a row version.

public ref class TimestampAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Field | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)]
public sealed class TimestampAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Field | System.AttributeTargets.Property, AllowMultiple=false, Inherited=true)>]
type TimestampAttribute = class
    inherit Attribute

Public NotInheritable Class TimestampAttribute
Inherits Attribute

Inheritance

Object

Attribute

TimestampAttribute

Attributes

AttributeUsageAttribute

Remarks

A row version type (also known as a sequence number) is a binary number that is guaranteed to be unique in the database. It does not represent an actual time. Row version data is not visually meaningful. Therefore, when the TimestampAttribute attribute is used with a Dynamic Data field, the column is not displayed unless the ScaffoldColumnAttribute attribute of the column is explicitly set to true.

For more information, see rowversion.

Constructors

TimestampAttribute()

Initializes a new instance of the TimestampAttribute class.

Properties

TypeId

When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)