TraceContextEventArgs Class
.NET Framework 3.0
Provides a collection of trace records to any method that handles the TraceFinished event. This class cannot be inherited.
Namespace: System.Web
Assembly: System.Web (in system.web.dll)
Assembly: System.Web (in system.web.dll)
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. 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.
The following code example demonstrates how you can register a TraceContextEventHandler delegate to handle the TraceFinished event. 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>
- AspNetHostingPermission for operating in a hosted environment. Demand value: LinkDemand; Permission value: Minimal.
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