RegisteredSubscriberCollection Classe

Definizione

Spazio dei nomi:

Microsoft.SqlServer.Replication

Assembly:

Microsoft.SqlServer.Rmo.dll

Rappresenta una raccolta di oggetti RegisteredSubscriber.

public ref class RegisteredSubscriberCollection sealed : Microsoft::SqlServer::Replication::ReplicationBaseCollection

public sealed class RegisteredSubscriberCollection : Microsoft.SqlServer.Replication.ReplicationBaseCollection

type RegisteredSubscriberCollection = class
    inherit ReplicationBaseCollection

Public NotInheritable Class RegisteredSubscriberCollection
Inherits ReplicationBaseCollection

Ereditarietà

Object

ReplicationBaseCollection

RegisteredSubscriberCollection

Esempio

In questo esempio viene illustrato come controllare il numero di RegisteredSubscriber oggetti nell'oggetto RegisteredSubscriberCollection a cui si accede dalla RegisteredSubscribers proprietà .

// Set the Distributor and publication database names.
// Publisher and Distributor are on the same server instance.
string publisherName = publisherInstance;
string distributorName = publisherInstance;
string distributionDbName = "distribution";
string publicationDbName = "AdventureWorks2012";

// Create connections to the Publisher and Distributor
// using Windows Authentication.
ServerConnection publisherConn = new ServerConnection(publisherName);
ServerConnection distributorConn = new ServerConnection(distributorName);

// Create the objects we need.
ReplicationServer distributor =
    new ReplicationServer(distributorConn);
DistributionPublisher publisher;
DistributionDatabase distributionDb =
    new DistributionDatabase(distributionDbName, distributorConn);
ReplicationDatabase publicationDb;
publicationDb = new ReplicationDatabase(publicationDbName, publisherConn);

try
{
    // Connect to the Publisher and Distributor.
    publisherConn.Connect();
    distributorConn.Connect();

    // Disable all publishing on the AdventureWorks2012 database.
    if (publicationDb.LoadProperties())
    {
        if (publicationDb.EnabledMergePublishing)
        {
            publicationDb.EnabledMergePublishing = false;
        }
        else if (publicationDb.EnabledTransPublishing)
        {
            publicationDb.EnabledTransPublishing = false;
        }
    }
    else
    {
        throw new ApplicationException(
            String.Format("The {0} database does not exist.", publicationDbName));
    }

    // We cannot uninstall the Publisher if there are still Subscribers.
    if (distributor.RegisteredSubscribers.Count == 0)
    {
        // Uninstall the Publisher, if it exists.
        publisher = new DistributionPublisher(publisherName, distributorConn);
        if (publisher.LoadProperties())
        {
            publisher.Remove(false);
        }
        else
        {
            // Do something here if the Publisher does not exist.
            throw new ApplicationException(String.Format(
                "{0} is not a Publisher for {1}.", publisherName, distributorName));
        }

        // Drop the distribution database.
        if (distributionDb.LoadProperties())
        {
            distributionDb.Remove();
        }
        else
        {
            // Do something here if the distribition DB does not exist.
            throw new ApplicationException(String.Format(
                "The distribution database '{0}' does not exist on {1}.",
                distributionDbName, distributorName));
        }

        // Uninstall the Distributor, if it exists.
        if (distributor.LoadProperties())
        {
            // Passing a value of false means that the Publisher 
            // and distribution databases must already be uninstalled,
            // and that no local databases be enabled for publishing.
            distributor.UninstallDistributor(false);
        }
        else
        {
            //Do something here if the distributor does not exist.
            throw new ApplicationException(String.Format(
                "The Distributor '{0}' does not exist.", distributorName));
        }
    }
    else
    {
        throw new ApplicationException("You must first delete all subscriptions.");
    }
}
catch (Exception ex)
{
    // Implement appropriate error handling here.
    throw new ApplicationException("The Publisher and Distributor could not be uninstalled", ex);
}
finally
{
    publisherConn.Disconnect();
    distributorConn.Disconnect();
}

' Set the Distributor and publication database names.
' Publisher and Distributor are on the same server instance.
Dim publisherName As String = publisherInstance
Dim distributorName As String = subscriberInstance
Dim distributionDbName As String = "distribution"
Dim publicationDbName As String = "AdventureWorks2012"

' Create connections to the Publisher and Distributor
' using Windows Authentication.
Dim publisherConn As ServerConnection = New ServerConnection(publisherName)
Dim distributorConn As ServerConnection = New ServerConnection(distributorName)

' Create the objects we need.
Dim distributor As ReplicationServer
distributor = New ReplicationServer(distributorConn)
Dim publisher As DistributionPublisher
Dim distributionDb As DistributionDatabase
distributionDb = New DistributionDatabase(distributionDbName, distributorConn)
Dim publicationDb As ReplicationDatabase
publicationDb = New ReplicationDatabase(publicationDbName, publisherConn)

Try
    ' Connect to the Publisher and Distributor.
    publisherConn.Connect()
    distributorConn.Connect()

    ' Disable all publishing on the AdventureWorks2012 database.
    If publicationDb.LoadProperties() Then
        If publicationDb.EnabledMergePublishing Then
            publicationDb.EnabledMergePublishing = False
        ElseIf publicationDb.EnabledTransPublishing Then
            publicationDb.EnabledTransPublishing = False
        End If
    Else
        Throw New ApplicationException( _
            String.Format("The {0} database does not exist.", publicationDbName))
    End If

    ' We cannot uninstall the Publisher if there are still Subscribers.
    If distributor.RegisteredSubscribers.Count = 0 Then
        ' Uninstall the Publisher, if it exists.
        publisher = New DistributionPublisher(publisherName, distributorConn)
        If publisher.LoadProperties() Then
            publisher.Remove(False)
        Else
            ' Do something here if the Publisher does not exist.
            Throw New ApplicationException(String.Format( _
                "{0} is not a Publisher for {1}.", publisherName, distributorName))
        End If

        ' Drop the distribution database.
        If distributionDb.LoadProperties() Then
            distributionDb.Remove()
        Else
            ' Do something here if the distribition DB does not exist.
            Throw New ApplicationException(String.Format( _
             "The distribution database '{0}' does not exist on {1}.", _
             distributionDbName, distributorName))
        End If

        ' Uninstall the Distributor, if it exists.
        If distributor.LoadProperties() Then
            ' Passing a value of false means that the Publisher 
            ' and distribution databases must already be uninstalled,
            ' and that no local databases be enabled for publishing.
            distributor.UninstallDistributor(False)
        Else
            'Do something here if the distributor does not exist.
            Throw New ApplicationException(String.Format( _
                "The Distributor '{0}' does not exist.", distributorName))
        End If
    Else
        Throw New ApplicationException("You must first delete all subscriptions.")
    End If

Catch ex As Exception
    ' Implement appropriate error handling here.
    Throw New ApplicationException("The Publisher and Distributor could not be uninstalled", ex)

Finally
    publisherConn.Disconnect()
    distributorConn.Disconnect()

End Try

Commenti

È possibile accedere a un RegisteredSubscriber oggetto nella raccolta dalla Item[] proprietà utilizzando un valore di indice [Int32] o usando un valore di indice [String] che corrisponde al nome del Sottoscrittore.

Questo spazio dei nomi, classe o membro è supportato solo nella versione 2.0 di .NET Framework.

Thread safety

Tutti i membri statici pubblici (Shared in Microsoft Visual Basic) di questo tipo sono sicuri per le operazioni multithreading. Non è invece garantita la sicurezza dei membri dell'istanza.

Proprietà

Count	Ottiene il numero di oggetti nella raccolta a cui si fa riferimento. (Ereditato da ReplicationBaseCollection)
IsSynchronized	Ottiene un valore che indica se l'accesso alla raccolta è sincronizzato e pertanto affidabile. (Ereditato da ReplicationBaseCollection)
Item[Int32]	Ottiene un oggetto RegisteredSubscriber nella raccolta in base al numero di indice.
Item[String]	Ottiene un oggetto RegisteredSubscriber nella raccolta in base al nome.
SyncRoot	Ottiene un oggetto che può essere usato per sincronizzare l'accesso alla raccolta. (Ereditato da ReplicationBaseCollection)

Metodi

CopyTo(Array, Int32)	Copia la raccolta in una matrice. (Ereditato da ReplicationBaseCollection)
CopyTo(RegisteredSubscriberCollection, Int32)	Crea una copia della raccolta.
GetEnumerator()	Ottiene un enumeratore utilizzato per scorrere gli oggetti di una raccolta. (Ereditato da ReplicationBaseCollection)
InitList()	Inizializza la raccolta di base della replica. (Ereditato da ReplicationBaseCollection)
Refresh()	Aggiorna la raccolta. (Ereditato da ReplicationBaseCollection)