SubscriptionField Class

Represents a field in the subscription class schema.

Namespace: Microsoft.SqlServer.Management.Nmo
Assembly: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

public sealed class SubscriptionField : NamedSmoObject
public final class SubscriptionField extends NamedSmoObject
public final class SubscriptionField extends NamedSmoObject

A SubscriptionField object defines a single column in the subscription table in the application database. This table stores subscription data produced by your subscription management interface.

Notification Services automatically adds SubscriberID, Created, Updated, and Enabled fields to the subscription class schema.

If you add or delete a field, updating the application re-creates the subscription class to which it corresponds. Notification Services renames the existing subscription tables by appending Old to the table name and then creates new tables. Existing subscription table indexes are left unchanged.

If you want to transfer data between the old and new subscription tables, it must be done manually. For more information, see Updating an Application.


The following examples show how to define a subscription field and add it to the subscription schema:

// Define a SubscriberLocale field that cannot be NULL
// Add the field to the end of the field collection
SubscriptionField subLocale = 
    new SubscriptionField(flightSubscriptions, "SubscriberLocale");
subLocale.Type = "nvarchar(10)";
subLocale.TypeModifier = "not null";
flightSubscriptions.SubscriptionFields.Add(subLocale);

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Development Platforms

For a list of the supported platforms, see Hardware and Software Requirements for Installing SQL Server 2005.

Target Platforms

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