EventTrackingEnabledAttribute 类
定义
为组件启用事件跟踪。Enables event tracking for a component. 此类不能被继承。This class cannot be inherited.
public ref class EventTrackingEnabledAttribute sealed : Attribute
[System.AttributeUsage(System.AttributeTargets.Class, Inherited=true)]
[System.Runtime.InteropServices.ComVisible(false)]
public sealed class EventTrackingEnabledAttribute : Attribute
[<System.AttributeUsage(System.AttributeTargets.Class, Inherited=true)>]
[<System.Runtime.InteropServices.ComVisible(false)>]
type EventTrackingEnabledAttribute = class
inherit Attribute
Public NotInheritable Class EventTrackingEnabledAttribute
Inherits Attribute
- 继承
- 属性
示例
下面的代码示例演示如何使用 EventTrackingEnabledAttribute 类型。The following code example demonstrates the use of the EventTrackingEnabledAttribute type.
using System;
using System.EnterpriseServices;
using System.Reflection;
// References:
// System.EnterpriseServices
[EventTrackingEnabled]
public class EventTrackingEnabledAttribute_Ctor : ServicedComponent
{
}
[EventTrackingEnabled(false)]
public class EventTrackingEnabledAttribute_Ctor_Bool : ServicedComponent
{
}
[EventTrackingEnabled(false)]
public class EventTrackingEnabledAttribute_Value : ServicedComponent
{
public void ValueExample()
{
// Get the EventTrackingEnabledAttribute applied to the class.
EventTrackingEnabledAttribute attribute =
(EventTrackingEnabledAttribute)Attribute.GetCustomAttribute(
this.GetType(),
typeof(EventTrackingEnabledAttribute),
false);
// Display the value of the attribute's Value property.
Console.WriteLine("EventTrackingEnabledAttribute.Value: {0}",
attribute.Value);
}
}
Imports System.EnterpriseServices
Imports System.Reflection
' References:
' System.EnterpriseServices
<EventTrackingEnabled()> _
Public Class EventTrackingEnabledAttribute_Ctor
Inherits ServicedComponent
End Class
<EventTrackingEnabled(False)> _
Public Class EventTrackingEnabledAttribute_Ctor_Bool
Inherits ServicedComponent
End Class
<EventTrackingEnabled(False)> _
Public Class EventTrackingEnabledAttribute_Value
Inherits ServicedComponent
Public Sub ValueExample()
' Get the EventTrackingEnabledAttribute applied to the class.
Dim attribute As EventTrackingEnabledAttribute = CType(Attribute.GetCustomAttribute(Me.GetType(), GetType(EventTrackingEnabledAttribute), False), EventTrackingEnabledAttribute)
' Display the value of the attribute's Value property.
MsgBox("EventTrackingEnabledAttribute.Value: " & attribute.Value)
End Sub
End Class
注解
有关使用特性的详细信息,请参阅 特性。For more information about using attributes, see Attributes.
构造函数
| EventTrackingEnabledAttribute() |
初始化 EventTrackingEnabledAttribute 类的新实例,并启用事件跟踪。Initializes a new instance of the EventTrackingEnabledAttribute class, enabling event tracking. |
| EventTrackingEnabledAttribute(Boolean) |
初始化 EventTrackingEnabledAttribute 类的新实例,并可以选择禁用事件跟踪。Initializes a new instance of the EventTrackingEnabledAttribute class, optionally disabling event tracking. |
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) |
| Value |
获取 Value 属性的值,该值指示是否启用跟踪。Gets the value of the Value property, which indicates whether tracking is enabled. |
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) |