SubscriptionFieldCollection.Add Method (SubscriptionField, Int32)
Adds a SubscriptionField to the SubscriptionFieldCollection at the specified position.
命名空间: Microsoft.SqlServer.Management.Nmo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)
语法
声明
Public Sub Add ( _
subscriptionField As SubscriptionField, _
insertAtPosition As Integer _
)
public void Add (
SubscriptionField subscriptionField,
int insertAtPosition
)
public:
void Add (
SubscriptionField^ subscriptionField,
int insertAtPosition
)
public void Add (
SubscriptionField subscriptionField,
int insertAtPosition
)
public function Add (
subscriptionField : SubscriptionField,
insertAtPosition : int
)
参数
- subscriptionField
The SubscriptionField to add to the collection.
- insertAtPosition
A Int32 that specifies the zero-based position in the collection where you want to add the SubscriptionField object.
备注
This method allows you to insert a subscription field at a specific position in the subscription field list. Each subscription field becomes a column in a table. Depending on how you add subscriptions, the order of the columns can be important.
If you add a subscription field, updating the instance 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.
Use the Update method to update the instance.
If you want to transfer data between the old and new subscription tables, it must be done manually. For more information, see 更新应用程序.
示例
The following examples show how to define a subscription field and add it at the third position in the collection of subscription fields:
// Add a GoingTo field and add it at position 2
SubscriptionField subDestination =
new SubscriptionField(flightSubscriptions, "GoingTo");
subDestination.Type = "nvarchar(6)";
flightSubscriptions.SubscriptionFields.Add(subDestination, 2);
' Add a GoingTo field and add it at position 2
Dim subDestination As SubscriptionField = _
New SubscriptionField(flightSubscriptions, "GoingTo")
subDestination.Type = "nvarchar(6)"
flightSubscriptions.SubscriptionFields.Add(subDestination, 2)
线程安全
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
开发平台
有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。
目标平台
有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。
请参阅
参考
SubscriptionFieldCollection Class
SubscriptionFieldCollection Members
Microsoft.SqlServer.Management.Nmo Namespace