ConcurrencyStrategy Enumeration

The strategy to use when working with a 'concurrency' EntityProperty.

Syntax

Visual Basic
C#

'Declaration
 
Public Enum ConcurrencyStrategy 
   Inherits System.Enum
   Implements System.IComparable, System.IConvertible, System.IFormattable

'Usage
 
Dim instance As ConcurrencyStrategy

public enum ConcurrencyStrategy : System.Enum, System.IComparable, System.IConvertible, System.IFormattable

Members

Member	Description
AutoDateTime	Allow DevForce to automatically set the current date and time to the property upon insert or update.
AutoGuid	Allow DevForce to automatically assign a new Guid to the property upon insert or update.
AutoIncrement	Allow DevForce to automatically increment a numeric field by 1 upon insert or update.
Client	The property is a concurrency field, but the client application is responsible for maintaining the value.
None	The property is not a concurrency field.
ServerCallback	Call a custom IConcurrencyStrategy upon insert or update.

Remarks

The DevForce Object Mapping tool allows you to set a ConcurrencyStrategy for every property to be used as a concurrency field. Concurrency properties are used to support optimistic concurrency checking during EntityManager.SaveChanges processing.

If you choose a strategy of ServerCallback then you must implement a custom IConcurrencyStrategy so that your callback routine will be called during save processing.

Inheritance Hierarchy

System.Object
   System.ValueType
      System.Enum
         IdeaBlade.EntityModel.ConcurrencyStrategy

Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

IdeaBlade.EntityModel Namespace