SPSequence 类
在Microsoft SharePoint Foundation中的所有升级序列提供抽象超类。
继承层次结构
System.Object
Microsoft.SharePoint.Upgrade.StopEventReceiver
Microsoft.SharePoint.Upgrade.SPDelegate
Microsoft.SharePoint.Upgrade.SPSequence
Microsoft.SharePoint.Upgrade.SPActionSequence
命名空间： Microsoft.SharePoint.Upgrade
程序集： Microsoft.SharePoint（位于 Microsoft.SharePoint.dll 中）
语法
声明
<SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel := True)> _
<SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel := True)> _
Public MustInherit Class SPSequence _
Inherits SPDelegate _
Implements IUpgrader, IHierarchyBuilder, IVersionCompatibleUpgrader
用法
Dim instance As SPSequence
[SharePointPermissionAttribute(SecurityAction.LinkDemand, ObjectModel = true)]
[SharePointPermissionAttribute(SecurityAction.InheritanceDemand, ObjectModel = true)]
public abstract class SPSequence : SPDelegate,
IUpgrader, IHierarchyBuilder, IVersionCompatibleUpgrader
备注
每个具体序列用于升级服务器场中特定的对象类型。必须具有可升级的属性标记每个对象。
线程安全性
该类型的任何公共 静态 (已共享 在 Visual Basic 中) 成员都是线程安全的。不保证任何实例成员都是线程安全的。