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
EventTrackingEnabledAttribute
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 TypeGets 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)

适用于