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SetDefaultInitFields 方法 (Boolean)

指定在实例化对象时提取所有属性。

命名空间：  Microsoft.SqlServer.Management.Smo
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
Public Sub SetDefaultInitFields ( _
    allFields As Boolean _
)
用法
Dim instance As Server
Dim allFields As Boolean

instance.SetDefaultInitFields(allFields)

public void SetDefaultInitFields(
    bool allFields
)

public:
void SetDefaultInitFields(
    bool allFields
)

member SetDefaultInitFields : 
        allFields:bool -> unit 

public function SetDefaultInitFields(
    allFields : boolean
)

参数

  • allFields
    类型：System. . :: . .Boolean
    一个 Boolean 值，该值指定在实例化对象时是否提取所有属性。
    如果为 True，则在实例化对象时提取所有属性。
    如果为 False，则所用对象设置为默认行为。

注释

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.

示例

Visual Basic

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Reference the AdventureWorks2008R2 database.
Dim db As Database
db = srv.Databases("AdventureWorks2008R2")
'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 AdventureWorks2008R2.
'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)

PowerShell

$srv = new-Object Microsoft.SqlServer.Management.Smo.Server("(local)")
$db = New-Object Microsoft.SqlServer.Management.Smo.Database
$db = $srv.Databases.Item("AdventureWorks2008R2")
$tb = new-object Microsoft.SqlServer.Management.Smo.Table
$typ = $tb.GetType()
$sc = $srv.GetDefaultInitFields($typ)
$srv.SetDefaultInitFields($typ, "CreateDate")
foreach ($tb in $db.Tables)
{
   Write-Host $tb.Schema,".",$tb.Name,".",$tb.CreateDate
}
$srv.SetDefaultInitFields($typ, $sc)