Server.SetDefaultInitFields Method (Boolean)

Articolo
12/15/2008

Specifies all the properties are fetched when objects are instantiated.

Spazio dei nomi: Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Sintassi

'Dichiarazione
Public Sub SetDefaultInitFields ( _
    allFields As Boolean _
)

public void SetDefaultInitFields (
    bool allFields
)

public:
void SetDefaultInitFields (
    bool allFields
)

public void SetDefaultInitFields (
    boolean allFields
)

public function SetDefaultInitFields (
    allFields : boolean
)

Parametri

allFields
A Boolean value that specifies whether all the properties are fetched when objects are instantiated.

If True, all the properties are fetched when objects are instantiated.

If False, all objects are set to default behavior.

Osservazioni

Testo aggiornato:

SMO optimization allows only the minimum properties to be loaded when an object is created. When uninitialized properties are accessed, SMO makes individual requests to load the information from the instance of SQL Server. You can use this method to adjust which properties are initialized for an object when it is first created to further optimize performance.

Questo spazio dei nomi, classe o membro è supportato solo nella versione 2.0 di Microsoft .NET Framework.

Esempio

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Reference the AdventureWorks database.
Dim db As Database
db = srv.Databases("AdventureWorks")
'Assign the Table object type to a System.Type object variable.
Dim tb As Table
Dim typ As Type
tb = New Table
typ = tb.GetType
'Assign the current default initialization fields for the Table object type to a 
'StringCollection object variable.
Dim sc As StringCollection
sc = srv.GetDefaultInitFields(typ)
'Set the default initialization fields for the Table object type to the CreateDate property.
srv.SetDefaultInitFields(typ, "CreateDate")
'Retrieve the Schema, Name, and CreateDate properties for every table in AdventureWorks.
'Note that the improvement in performance can be viewed in SQL Profiler.
For Each tb In db.Tables
    Console.WriteLine(tb.Schema + "." + tb.Name + " " + tb.CreateDate)
Next
'Set the default initialization fields for the Table object type back to the original settings.
srv.SetDefaultInitFields(typ, sc)

Thread Safety

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.

Piattaforme

Piattaforme di sviluppo

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Piattaforme di destinazione

Per un elenco delle piattaforme supportate, vedere Requisiti hardware e software per l'Installazione di SQL Server 2005.

Vedere anche

Riferimento

Server Class
Server Members
Microsoft.SqlServer.Management.Smo Namespace

Altre risorse

How to: Set Default Initialization Fields in Visual Basic .NET
Setting Properties
Calling Methods
Gestione dei server

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