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.NET Framework 4.5

.NET Framework Class Library

System.DirectoryServices Namespaces

System.DirectoryServices.Protocols

AddRequest Class

AddResponse Class

AsqRequestControl Class

AsqResponseControl Class

AuthType Enumeration

BerConversionException Class

BerConverter Class

CompareRequest Class

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CrossDomainMoveControl Class

DeleteRequest Class

DeleteResponse Class

DereferenceAlias Enumeration

DereferenceConnectionCallback Delegate

DirectoryAttribute Class

DirectoryAttributeCollection Class

DirectoryAttributeModification Class

DirectoryAttributeModificationCollection Class

DirectoryAttributeOperation Enumeration

DirectoryConnection Class

DirectoryControl Class

DirectoryControlCollection Class

DirectoryException Class

DirectoryIdentifier Class

DirectoryNotificationControl Class

DirectoryOperation Class

DirectoryOperationException Class

DirectoryRequest Class

DirectoryResponse Class

DirectorySynchronizationOptions Enumeration

DirSyncRequestControl Class

DirSyncResponseControl Class

DomainScopeControl Class

DsmlAuthRequest Class

DsmlAuthResponse Class

DsmlDirectoryIdentifier Class

DsmlDocument Class

DsmlDocumentProcessing Enumeration

DsmlErrorProcessing Enumeration

DsmlErrorResponse Class

DsmlInvalidDocumentException Class

DsmlRequestDocument Class

DsmlResponseDocument Class

DsmlResponseOrder Enumeration

DsmlSoapConnection Class

DsmlSoapHttpConnection Class

ErrorResponseCategory Enumeration

ErrorResponseException Class

ExtendedDNControl Class

ExtendedDNFlag Enumeration

ExtendedRequest Class

ExtendedResponse Class

LazyCommitControl Class

LdapConnection Class

LdapDirectoryIdentifier Class

LdapException Class

LdapSessionOptions Class

LocatorFlags Enumeration

ModifyDNRequest Class

ModifyDNResponse Class

ModifyRequest Class

ModifyResponse Class

NotifyOfNewConnectionCallback Delegate

PageResultRequestControl Class

PageResultResponseControl Class

PartialResultProcessing Enumeration

PartialResultsCollection Class

PermissiveModifyControl Class

QueryClientCertificateCallback Delegate

QueryForConnectionCallback Delegate

QuotaControl Class

ReferralCallback Class

ReferralChasingOptions Enumeration

ResultCode Enumeration

SearchOption Enumeration

SearchOptionsControl Class

SearchRequest Class

SearchResponse Class

SearchResultAttributeCollection Class

SearchResultEntry Class

SearchResultEntryCollection Class

SearchResultReference Class

SearchResultReferenceCollection Class

SearchScope Enumeration

SecurityDescriptorFlagControl Class

SecurityMasks Enumeration

SecurityPackageContextConnectionInformation Class

SecurityProtocol Enumeration

ShowDeletedControl Class

SortKey Class

SortRequestControl Class

SortResponseControl Class

TlsOperationException Class

TreeDeleteControl Class

VerifyNameControl Class

VerifyServerCertificateCallback Delegate

VlvRequestControl Class

VlvResponseControl Class

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QueryForConnectionCallback Delegate

.NET Framework 4.5

The QueryForConnectionCallback delegate determines whether there is a cached connection available for use.

Namespace: System.DirectoryServices.Protocols
Assembly: System.DirectoryServices.Protocols (in System.DirectoryServices.Protocols.dll)

public delegate LdapConnection QueryForConnectionCallback(
	LdapConnection primaryConnection,
	LdapConnection referralFromConnection,
	string newDistinguishedName,
	LdapDirectoryIdentifier identifier,
	NetworkCredential credential,
	long currentUserToken
)

Parameters

primaryConnection: Type: System.DirectoryServices.Protocols.LdapConnection
A LdapConnection object that specifies the primary connection.

referralFromConnection: Type: System.DirectoryServices.Protocols.LdapConnection
A LdapConnection object that specifies the connection that provides the referral.

newDistinguishedName: Type: System.String
A String object that specifies the distinguished name (DN) of the desired entry in the referred server.

identifier: Type: System.DirectoryServices.Protocols.LdapDirectoryIdentifier
A LdapDirectoryIdentifier object that specifies the identifier for the referred LDAP directory.

credential: Type: System.Net.NetworkCredential
A NetworkCredential object that specifies the credentials to pass to the referred server.

currentUserToken: Type: System.Int64
The LUID for the current user.

Return Value

Type: System.DirectoryServices.Protocols.LdapConnection
A cached LdapConnection is returned, if there is one available. If no cached connection is available, NULL is returned.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

System.DirectoryServices.Protocols Namespace

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