SubscriptionField Class

發行項
12/15/2008

Represents a field in the subscription class schema.

命名空間: Microsoft.SqlServer.Management.Nmo
組件: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

語法

'宣告
Public NotInheritable Class SubscriptionField
    Inherits NamedSmoObject

public sealed class SubscriptionField : NamedSmoObject

public ref class SubscriptionField sealed : public NamedSmoObject

public final class SubscriptionField extends NamedSmoObject

public final class SubscriptionField extends NamedSmoObject

備註

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 更新應用程式.

Inheritance Hierarchy

System.Object
   Microsoft.SqlServer.Management.Smo.SmoObjectBase
     Microsoft.SqlServer.Management.Smo.SqlSmoObject
       Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Nmo.SubscriptionField

範例

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);

' Define a SubscriberLocale field that cannot be NULL
' Add the field to the end of the field collection
Dim subLocale As SubscriptionField = _
    New SubscriptionField(flightSubscriptions, _
    "SubscriberLocale")
subLocale.Type = "nvarchar(10)"
subLocale.TypeModifier = "not null"
flightSubscriptions.SubscriptionFields.Add(subLocale)

執行緒安全性

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.

平台

開發平台

如需受支援的平台清單，請參閱＜安裝 SQL Server 2005 的硬體和軟體需求＞。

目標平台