EntityManager Constructor(EntityManager,Boolean,String,EntityServiceOption,String)

Initialize a new instance of the EntityManager class using the credentials and settings from another EntityManager, but with the connection state, data source extension and options specified.

Syntax

Visual Basic
C#

'Declaration
 
Public Function New( _
   ByVal entityManager As EntityManager, _
   ByVal shouldConnect As Boolean, _
   Optional ByVal dataSourceExtension As String, _
   Optional ByVal entityServiceOption As EntityServiceOption, _
   Optional ByVal compositionContextName As String _
)

'Usage
 
Dim entityManager As EntityManager
Dim shouldConnect As Boolean
Dim dataSourceExtension As String
Dim entityServiceOption As EntityServiceOption
Dim compositionContextName As String
 
Dim instance As New EntityManager(entityManager, shouldConnect, dataSourceExtension, entityServiceOption, compositionContextName)

public EntityManager( 
   EntityManager entityManager,
   bool shouldConnect,
   string dataSourceExtension,
   EntityServiceOption entityServiceOption,
   string compositionContextName
)

Parameters

entityManager: EntityManager to copy settings from
shouldConnect: True if a connection to the EntityServer should be made.
dataSourceExtension: The DataSourceKey extension to search for in IdeaBlade configuration file.
entityServiceOption: Determines whether to use local or distributed data sources.
compositionContextName: Optional name of the CompositionContext to use for MEF composition.

Exceptions

Exception	Description
System.ArgumentNullException	entityManager is null
IdeaBlade.Core.IdeaBladeException	Thrown for miscellaneous initialization failures
EntityServerException	Thrown for connection failures
System.ArgumentException	Thrown in a Silverlight application when BOS is not specified

Remarks

This copy constructor will create a new "empty" (no data) EntityManager with the same settings and defaults as the specified EntityManager. The connection state, data source extension, and option for distributed or local data sources specified here will override the values from the source EntityManager. The new EntityManager will be "logged in" to the EntityServer with the credentials already provided in the passed EntityManager.

An EntityManagerCreated event is fired upon creation.

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

EntityManager Class
EntityManager Members
Overload List