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TraceContextRecord Class

Represents an ASP.NET trace message and any associated data.

Namespace: System.Web
Assembly: System.Web (in system.web.dll)

public sealed class TraceContextRecord
public final class TraceContextRecord
public final class TraceContextRecord
Not applicable.

The TraceContextRecord object encapsulates the trace message, category, any associated Exception, and whether the trace record was written by the System.Web.TraceContext.Warn method.

Every call to the System.Web.TraceContext.Write and System.Web.TraceContext.Warn methods generates a TraceContextRecord object that is added to the TraceContextEventArgs.TraceRecords messages collection. You can access the collection of records by handling the TraceFinished event.

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>

System.Object
  System.Web.TraceContextRecord
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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