TraceContextEventArgs 类

定义

向所有处理 TraceFinished 事件的方法提供跟踪记录的集合。Provides a collection of trace records to any method that handles the TraceFinished event. 此类不能被继承。This class cannot be inherited.

public ref class TraceContextEventArgs sealed : EventArgs
public sealed class TraceContextEventArgs : EventArgs
type TraceContextEventArgs = class
    inherit EventArgs
Public NotInheritable Class TraceContextEventArgs
Inherits EventArgs
继承
TraceContextEventArgs

示例

下面的代码示例演示如何注册TraceContextEventHandler委托来TraceFinished处理事件。The following code example demonstrates how you can register a TraceContextEventHandler delegate to handle the TraceFinished event. 在此示例中, OnTraceFinished方法通过TraceRecords属性访问TraceContextRecord对象的集合, 循环访问它们, 并将它们写入响应流。In this example, the OnTraceFinished method accesses the collection of TraceContextRecord objects through the TraceRecords property, iterates through them, and writes them to the response stream.

<%@ Page language="c#" Trace="true" %>
<script runat="server">
void Page_Load(object sender, EventArgs e)
{
    // Register a handler for the TraceFinished event.
    Trace.TraceFinished += new 
        TraceContextEventHandler(this.OnTraceFinished);

    // Write a trace message.
    Trace.Write("Web Forms Infrastructure Methods", "USERMESSAGE: Page_Load complete.");
}
 
// A TraceContextEventHandler for the TraceFinished event.
void OnTraceFinished(object sender, TraceContextEventArgs e)
{
    TraceContextRecord r = null;    
    
    // Iterate through the collection of trace records and write 
    // them to the response stream.
    foreach(object o in e.TraceRecords)
    {
        r = (TraceContextRecord)o;
        Response.Write(String.Format("trace message: {0} <BR>", r.Message));
    }
}       
</script>
<%@ Page language="VB" Trace="true" %>
<script runat="server">
' The Page_Load method.
Private Sub Page_Load(sender As Object, e As EventArgs)

    ' Register a handler for the TraceFinished event.
    AddHandler Trace.TraceFinished, AddressOf OnTraceFinished

    ' Write a trace message.
    Trace.Write("Web Forms Infrastructure Methods", "USERMESSAGE: Page_Load complete.")
End Sub ' Page_Load
 
' A TraceContextEventHandler for the TraceFinished event.
Private Sub OnTraceFinished(sender As Object, e As TraceContextEventArgs)

    Dim r As TraceContextRecord
    Dim o As Object
    
    ' Iterate through the collection of trace records and write 
    ' them to the response stream.

    For Each o In e.TraceRecords
        r = CType(o, TraceContextRecord)
        Response.Write(String.Format("trace message: {0} <BR>", r.Message))
    Next

End Sub ' OnTraceFinished
</script>

注解

TraceContextEventArgs类用于TraceContext在 HTTP 请求处理过程中收集所有跟踪信息后, 提供对跟踪记录的访问。The TraceContextEventArgs class is used by the TraceContext class to provide access to trace records after all the tracing information is gathered during HTTP request processing. 通过添加事件处理程序委托来处理TraceFinished事件, 你可以处理这些记录, 将它们记录到你自己的数据存储, 或者将其作为输入提供给分析工具。By adding an event handler delegate to handle the TraceFinished event, you can process the records, record them to your own data store, or provide them as input to a profiling tool.

构造函数

TraceContextEventArgs(ICollection)

使用提供的跟踪记录集合来初始化 TraceContextEventArgs 类的新实例。Initializes a new instance of the TraceContextEventArgs class, using the provided collection of trace records.

属性

TraceRecords

获取与当前请求关联的 TraceContextRecord 消息的集合。Gets a collection of TraceContextRecord messages that are associated with the current request.

方法

Equals(Object)

确定指定的对象是否等于当前对象。Determines whether the specified object is equal to the current object.

(继承自 Object)
GetHashCode()

用作默认哈希函数。Serves as the default hash function.

(继承自 Object)
GetType()

获取当前实例的 TypeGets the Type of the current instance.

(继承自 Object)
MemberwiseClone()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

(继承自 Object)
ToString()

返回一个表示当前对象的 string。Returns a string that represents the current object.

(继承自 Object)

适用于

另请参阅