ViewStateModeByIdAttribute 类
定义
public ref class ViewStateModeByIdAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Class)]
public sealed class ViewStateModeByIdAttribute : Attribute
[<System.AttributeUsage(System.AttributeTargets.Class)>]
type ViewStateModeByIdAttribute = class
inherit Attribute
Public NotInheritable Class ViewStateModeByIdAttribute
Inherits Attribute
- 继承
- 属性
注解
ViewStateModeByIdAttribute类用于指定需要由视图状态加载的控件 ID 。The ViewStateModeByIdAttribute class is used to specify a control that requires view-state loading by ID. 默认的视图状态加载行为适用于 ASP.NET,它通过页的控件树中的索引加载控件的视图状态信息。The default view-state loading behavior is for ASP.NET to load the view-state information for a control by its index in the control tree of the page. 加载视图状态信息会产生性能开销, ID 因为在加载视图状态信息之前,必须专门在控件中搜索控件树。There is a performance cost for loading view-state information by ID because the page control tree must be searched for the control specifically before loading its view-state information.
如果 ViewStateModeByIdAttribute 类用作自定义控件类的元数据特性,If the ViewStateModeByIdAttribute class is used as a metadata attribute of a custom control class,
LoadViewStateByID控件的属性返回 true 。the LoadViewStateByID property of the control returns true. 如果 ViewStateModeByIdAttribute 未使用类, LoadViewStateByID 控件的属性将返回其默认值 false ,这意味着控件不会加载其视图状态信息 ID 。If the ViewStateModeByIdAttribute class is not used, the LoadViewStateByID property of the control returns its default value of false, which means that the control does not load its view-state information by ID.
有关使用特性的详细信息,请参阅 特性。For more information about using attributes, see Attributes.
ViewStateModeByIdAttribute类不适用于保存控件的视图状态信息。The ViewStateModeByIdAttribute class does not apply to saving the view-state information for a control.
ViewStateModeByIdAttributeClass metadata 特性仅在类声明上有效。The ViewStateModeByIdAttribute class metadata attribute is valid only on class declarations.
构造函数
| ViewStateModeByIdAttribute() |
初始化 ViewStateModeByIdAttribute 类的新实例。Initializes a new instance of the ViewStateModeByIdAttribute class. |
属性
| TypeId |
在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute. (继承自 Attribute) |
方法
| Equals(Object) |
返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object. (继承自 Attribute) |
| GetHashCode() |
返回此实例的哈希代码。Returns the hash code for this instance. (继承自 Attribute) |
| GetType() |
获取当前实例的 Type。Gets the Type of the current instance. (继承自 Object) |
| IsDefaultAttribute() |
在派生类中重写时,指示此实例的值是否是派生类的默认值。When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (继承自 Attribute) |
| Match(Object) |
当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (继承自 Attribute) |
| MemberwiseClone() |
创建当前 Object 的浅表副本。Creates a shallow copy of the current Object. (继承自 Object) |
| ToString() |
返回表示当前对象的字符串。Returns a string that represents the current object. (继承自 Object) |
显式接口实现
| _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) |
将一组名称映射为对应的一组调度标识符。Maps a set of names to a corresponding set of dispatch identifiers. (继承自 Attribute) |
| _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) |
检索对象的类型信息,然后可以使用该信息获取接口的类型信息。Retrieves the type information for an object, which can be used to get the type information for an interface. (继承自 Attribute) |
| _Attribute.GetTypeInfoCount(UInt32) |
检索对象提供的类型信息接口的数量(0 或 1)。Retrieves the number of type information interfaces that an object provides (either 0 or 1). (继承自 Attribute) |
| _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) |
提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object. (继承自 Attribute) |