ReplicationObject.CachePropertyChanges Properti
Definisi
Penting
Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.
Mendapatkan atau mengatur apakah akan menyimpan perubahan yang dilakukan pada properti replikasi atau segera menerapkannya.
public:
property bool CachePropertyChanges { bool get(); void set(bool value); };
public bool CachePropertyChanges { get; set; }
member this.CachePropertyChanges : bool with get, set
Public Property CachePropertyChanges As Boolean
Nilai Properti
Nilai Boolean. Jika true
, perubahan properti di-cache. Jika false
, perubahan properti segera diterapkan.
Contoh
// Define the server, database, and publication names
string publisherName = publisherInstance;
string publicationName = "AdvWorksProductTran";
string publicationDbName = "AdventureWorks2012";
TransPublication publication;
// Create a connection to the Publisher.
ServerConnection conn = new ServerConnection(publisherName);
try
{
// Connect to the Publisher.
conn.Connect();
// Set the required properties for the publication.
publication = new TransPublication();
publication.ConnectionContext = conn;
publication.Name = publicationName;
publication.DatabaseName = publicationDbName;
// Explicitly enable caching of property changes on this object.
publication.CachePropertyChanges = true;
// If we can't get the properties for this publication,
// throw an application exception.
if (publication.LoadProperties())
{
// Enable support for push subscriptions and disable support
// for pull subscriptions.
if ((publication.Attributes & PublicationAttributes.AllowPull) != 0)
{
publication.Attributes ^= PublicationAttributes.AllowPull;
}
if ((publication.Attributes & PublicationAttributes.AllowPush) == 0)
{
publication.Attributes |= PublicationAttributes.AllowPush;
}
// Send changes to the server.
publication.CommitPropertyChanges();
}
else
{
throw new ApplicationException(String.Format(
"Settings could not be retrieved for the publication. " +
"Ensure that the publication {0} exists on {1}.",
publicationName, publisherName));
}
}
catch (Exception ex)
{
// Do error handling here.
throw new ApplicationException(
"The publication property could not be changed.", ex);
}
finally
{
conn.Disconnect();
}
' Define the server, database, and publication names
Dim publisherName As String = publisherInstance
Dim publicationName As String = "AdvWorksProductTran"
Dim publicationDbName As String = "AdventureWorks2012"
Dim publication As TransPublication
' Create a connection to the Publisher.
Dim conn As ServerConnection = New ServerConnection(publisherName)
Try
' Connect to the Publisher.
conn.Connect()
' Set the required properties for the publication.
publication = New TransPublication()
publication.ConnectionContext = conn
publication.Name = publicationName
publication.DatabaseName = publicationDbName
' Explicitly enable caching of property changes on this object.
publication.CachePropertyChanges = True
' If we can't get the properties for this publication,
' throw an application exception.
If publication.LoadProperties() Then
' Enable support for push subscriptions and disable support
' for pull subscriptions.
If (publication.Attributes And PublicationAttributes.AllowPull) <> 0 Then
publication.Attributes = publication.Attributes _
Xor PublicationAttributes.AllowPull
End If
If (publication.Attributes And PublicationAttributes.AllowPush) = 0 Then
publication.Attributes = publication.Attributes _
Or PublicationAttributes.AllowPush
End If
' Send changes to the server.
publication.CommitPropertyChanges()
Else
Throw New ApplicationException(String.Format( _
"Settings could not be retrieved for the publication. " + _
"Ensure that the publication {0} exists on {1}.", _
publicationName, publisherName))
End If
Catch ex As Exception
' Do error handling here.
Throw New ApplicationException( _
"The publication property could not be changed.", ex)
Finally
conn.Disconnect()
End Try
Keterangan
Ketika nilai CachePropertyChanges adalah false
, perubahan properti segera diatur sesuai dengan SqlExecutionModes properti ServerConnection objek . Ketika nilai diatur ke true
, perubahan properti akan di-cache hingga CommitPropertyChanges dipanggil. Ketika CommitPropertyChanges dipanggil, semua perubahan properti setelah CachePropertyChanges diatur sesuai dengan SqlExecutionModes properti .
Penembolokan hanya berlaku untuk properti yang disimpan di Microsoft SQL Server.
Nilai default CachePropertyChanges adalah false
.