(WAL) – Workflow Example – Removal of a multivalued reference attribute

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Special Thanks to Mr. David Hodge for putting the WAL Workflow Documentation together

Things to keep in mind

• the RemoveValues function requires a “List” to be passed to it. Adding in the GUID into the RemoveValues function didn’t seem to do it.
• An example PowerShell activity that allows you to build a list of object GUIDs to pass to the Update Resources activity.

Referencing https://social.technet.microsoft.com/Forums/en-US/63213b2d-4f31-416d-8e70-b871f37a7db8/removevaluesstringlist-not-removing-values?forum=Mimwal

Below is how I modified it… We could probably be more elegant by add

function New-GenericObject

{

<#

.Synopsis

Create a new generic object.

.Description

Create a new generic object.

.Example

New-GenericObject -TypeName System.Collections.Generic.List  -TypeParameters Microsoft.MetadirectoryServices.CSEntryChange

#>

 

[CmdletBinding()]

[OutputType([object])]

param(

[parameter(Mandatory = $true)]

[string]

$TypeName,

[parameter(Mandatory = $true)]

[string[]]

$TypeParameters,

[parameter(Mandatory = $false)]

[object[]]

$ConstructorParameters

)

 

process

{

$genericTypeName = $typeName + '`' + $typeParameters.Count

$genericType = [Type]$genericTypeName

 

if (!$genericType)

{

throw "Could not find generic type $genericTypeName"

}

 

# Bind the type arguments to it

$typedParameters = [type[]] $TypeParameters

$closedType = $genericType.MakeGenericType($typedParameters)

 

if (!$closedType)

{

throw "Could not make closed type $genericType"

}

 

# Create the closed version of the generic type, don't forget comma prefix

,[Activator]::CreateInstance($closedType, $constructorParameters)

}

}

 

 

$MembersToAdd = New-GenericObject System.Collections.Generic.List Microsoft.ResourceManagement.WebServices.UniqueIdentifier

$MembersToRemove = New-GenericObject System.Collections.Generic.List Microsoft.ResourceManagement.WebServices.UniqueIdentifier

 

#########################################################

#Example of how to add/remove a MIM Object by GUID

#########################################################

#$FIMService = New-Object Microsoft.ResourceManagement.WebServices.UniqueIdentifier("e05d1f1b-3d5e-4014-baa6-94dee7d68c89")

#$BulitInSyncAccount = New-Object Microsoft.ResourceManagement.WebServices.UniqueIdentifier("fb89aefa-5ea1-47f1-8890-abe7797d6497")

#$MembersToAdd.Add($FIMService)

#$MembersToAdd.Add($BulitInSyncAccount)

#$MembersToRemove.Add($FIMService)

#$MembersToRemove.Add($BulitInSyncAccount)

 

$ObjectID = New-Object Microsoft.ResourceManagement.WebServices.UniqueIdentifier("e05d1f1b-3d5e-4014-baa6-999999999999")

$MembersToRemove.Add($ObjectID)

 

return @{ "MembersToAdd" = $MembersToAdd; "MembersToRemove" = $MembersToRemove }