SqlCeReplication.AddSubscription Method

Creates a new anonymous subscription to an existing Microsoft SQL Server publication. After calling the AddSubscription method, the application must call the Synchronize method to synchronize the new subscription to the publication based on the latest snapshot.

Namespace: System.Data.SqlServerCe
Assembly: System.Data.SqlServerCe (in system.data.sqlserverce.dll)

Syntax

'Declaration
Public Sub AddSubscription ( _
    addOption As AddOption _
)
'Usage
Dim instance As SqlCeReplication
Dim addOption As AddOption

instance.AddSubscription(addOption)

public void AddSubscription (
    AddOption addOption
)

public:
void AddSubscription (
    AddOption addOption
)

public void AddSubscription (
    AddOption addOption
)

public function AddSubscription (
    addOption : AddOption
)

Not applicable.

Parameters

• addOption

Remarks

SQL Server Compact Edition replication only supports anonymous subscriptions.

The database administrator must configure SQL Server to support replication, create the SQL Server publication, and enable the publication for anonymous subscriptions before any SQL Server Compact Edition application can subscribe to the publication. The administrator does this on the SQL Server system using either the administrative or programmatic interfaces of SQL Server replication.

The AddOption value specifies the source of the newly created SQL Server Compact Edition subscription database. The value can be one of the following constants:

Value	Description
CreateDatabase	Specifies that the SQL Server Compact Edition database must first be created, and that the subscription contents are then obtained from the publisher over the network. In this case, the AddSubscription and Synchronize method calls create the SQL Server Compact Edition database and download the database contents from the SQL Server Publisher.
ExistingDatabase	Specifies that the database already exists, but contents are obtained from the publisher over the network. In this case, the AddSubscription and Synchronize method calls create the SQL Server Compact Edition subscription and download the database contents from the SQL Server Publisher.

AddOption only affects how the SQL Server Compact Edition database is initially created and treated by the SQL Server Compact Edition Client Agent; therefore, determining what data is downloaded to the Windows Mobile device from the server.

Example

This example creates a new subscription database by passing the CreateDatabase value of AddOption when calling the AddSubscription method.

Dim repl As SqlCeReplication = Nothing

Try
    ' Instantiate and configure SqlCeReplication object
    '
    repl = New SqlCeReplication()
    repl.InternetUrl = "https://www.adventure-works.com/sqlmobile/sqlcesa30.dll"
    repl.InternetLogin = "MyInternetLogin"
    repl.InternetPassword = "<password>"
    repl.Publisher = "MyPublisher"
    repl.PublisherDatabase = "MyPublisherDatabase"
    repl.PublisherLogin = "MyPublisherLogin"
    repl.PublisherPassword = "<password>"
    repl.Publication = "MyPublication"
    repl.Subscriber = "MySubscriber"
    repl.SubscriberConnectionString = "Data Source=MyDatabase.sdf"

    ' Create the local SQL Mobile Database subscription
    '
    repl.AddSubscription(AddOption.CreateDatabase)

    ' Synchronize to the SQL Server to populate the Subscription 
    '
    repl.Synchronize()
Catch
    ' Handle errors here
    '
Finally
    ' Dispose the repl object
    '
    repl.Dispose()
End Try

SqlCeReplication repl = null;

try
{
    // Instantiate and configure SqlCeReplication object
    //
    repl = new SqlCeReplication();
    repl.InternetUrl = "https://www.adventure-works.com/sqlmobile/sqlcesa30.dll";
    repl.InternetLogin = "MyInternetLogin";
    repl.InternetPassword = "<password>";
    repl.Publisher = "MyPublisher";
    repl.PublisherDatabase = "MyPublisherDatabase";
    repl.PublisherLogin = "MyPublisherLogin";
    repl.PublisherPassword = "<password>";
    repl.Publication = "MyPublication";
    repl.Subscriber = "MySubscriber";
    repl.SubscriberConnectionString = "Data Source=MyDatabase.sdf";

    // Create a local SQL Mobile Database subscription
    //
    repl.AddSubscription(AddOption.CreateDatabase);

    // Synchronize to the SQL Server database
    //
    repl.Synchronize();
}
catch (SqlCeException)
{
    // Handle errors here
    //
}
finally
{
    // Dispose the repl object
    //
    repl.Dispose();
}

Platforms

Windows CE, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows XP Professional x64 Edition, Windows XP SP2

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

Version Information

.NET Framework

Supported in: 3.0

.NET Compact Framework

Supported in: 2.0, 1.0

See Also

Reference

SqlCeReplication Class
SqlCeReplication Members
System.Data.SqlServerCe Namespace