TraceSection 類別
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
設定 ASP.NET 追蹤服務。 此類別無法獲得繼承。
public ref class TraceSection sealed : System::Configuration::ConfigurationSectionpublic sealed class TraceSection : System.Configuration.ConfigurationSectiontype TraceSection = class
inherit ConfigurationSectionPublic NotInheritable Class TraceSection
Inherits ConfigurationSection- 繼承
範例
下列程式代碼範例示範如何使用 型別 TraceSection 。
using System;
using System.Collections;
using System.Collections.Specialized;
using System.IO;
using System.Text;
using System.Text.RegularExpressions;
using System.Configuration;
using System.Web.Configuration;
namespace Samples.Aspnet.SystemWebConfiguration
{
// Accesses the System.Web.Configuration.TraceSection members
// selected by the user.
class UsingTraceSection
{
public static void Main()
{
// Process the System.Web.Configuration.TraceSectionobject.
try
{
// Get the Web application configuration.
System.Configuration.Configuration configuration =
System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/aspnet");
// Get the section.
System.Web.Configuration.TraceSection traceSection =
(System.Web.Configuration.TraceSection)
configuration.GetSection("system.web/trace");
// Get the current PageOutput property value.
Boolean pageOutputValue = traceSection.PageOutput;
// Set the PageOutput property to true.
traceSection.PageOutput = true;
// Get the current WriteToDiagnosticsTrace property value.
Boolean writeToDiagnosticsTraceValue = traceSection.WriteToDiagnosticsTrace;
// Set the WriteToDiagnosticsTrace property to true.
traceSection.WriteToDiagnosticsTrace = true;
// Get the current MostRecent property value.
Boolean mostRecentValue = traceSection.MostRecent;
// Set the MostRecent property to true.
traceSection.MostRecent = true;
// Get the current RequestLimit property value.
Int32 requestLimitValue = traceSection.RequestLimit;
// Set the RequestLimit property to 256.
traceSection.RequestLimit = 256;
// Get the current LocalOnly property value.
Boolean localOnlyValue = traceSection.LocalOnly;
// Set the LocalOnly property to false.
traceSection.LocalOnly = false;
// Get the current Enabled property value.
Boolean enabledValue = traceSection.Enabled;
// Set the Enabled property to false.
traceSection.Enabled = false;
// Get the current Mode property value.
// TraceDisplayMode modeValue = traceSection.TraceMode;
// Set the Mode property to TraceDisplayMode.SortyByTime.
// traceSection.Mode = TraceDisplayMode.SortByTime;
// Update if not locked.
if (!traceSection.SectionInformation.IsLocked)
{
configuration.Save();
Console.WriteLine("** Configuration updated.");
}
else
{
Console.WriteLine("** Could not update, section is locked.");
}
}
catch (System.ArgumentException e)
{
// Unknown error.
Console.WriteLine(
"A invalid argument exception detected in UsingTraceSection Main. Check your");
Console.WriteLine("command line for errors.");
}
}
} // UsingTraceSection class end.
} // Samples.Aspnet.SystemWebConfiguration namespace end.
Imports System.Collections
Imports System.Collections.Specialized
Imports System.IO
Imports System.Text
Imports System.Text.RegularExpressions
Imports System.Configuration
Imports System.Web.Configuration
Namespace Samples.Aspnet.SystemWebConfiguration
' Accesses the System.Web.Configuration.TraceSection members
' selected by the user.
Class UsingTraceSection
Public Shared Sub Main()
' Process the System.Web.Configuration.TraceSectionobject.
Try
' Get the Web application configuration.
Dim configuration As System.Configuration.Configuration = _
System.Web.Configuration.WebConfigurationManager.OpenWebConfiguration("/aspnet")
' Get the section.
Dim traceSection As System.Web.Configuration.TraceSection = _
CType(configuration.GetSection("system.web/trace"), _
System.Web.Configuration.TraceSection)
' Get the current PageOutput property value.
Dim pageOutputValue As Boolean = traceSection.PageOutput
' Set the PageOutput property to true.
traceSection.PageOutput = True
' Get the current WriteToDiagnosticsTrace property value.
Dim writeToDiagnosticsTraceValue As Boolean = traceSection.WriteToDiagnosticsTrace
' Set the WriteToDiagnosticsTrace property to true.
traceSection.WriteToDiagnosticsTrace = True
' Get the current MostRecent property value.
Dim mostRecentValue As Boolean = traceSection.MostRecent
' Set the MostRecent property to true.
traceSection.MostRecent = True
' Get the current RequestLimit property value.
Dim requestLimitValue As Int32 = traceSection.RequestLimit
' Set the RequestLimit property to 256.
traceSection.RequestLimit = 256
' Get the current LocalOnly property value.
Dim localOnlyValue As Boolean = traceSection.LocalOnly
' Set the LocalOnly property to false.
traceSection.LocalOnly = False
' Get the current Enabled property value.
Dim enabledValue As Boolean = traceSection.Enabled
' Set the Enabled property to false.
traceSection.Enabled = False
' Get the current Mode property value.
'Dim modeValue As TraceDisplayMode = traceSection.TraceMode
' Set the Mode property to TraceDisplayMode.SortByTime.
'traceSection.Mode = TraceDisplayMode.SortByTime
' Update if not locked.
If Not traceSection.SectionInformation.IsLocked Then
configuration.Save()
Console.WriteLine("** Configuration updated.")
Else
Console.WriteLine("** Could not update, section is locked.")
End If
Catch e As System.ArgumentException
' Unknown error.
Console.WriteLine( _
"A invalid argument exception detected in UsingTraceSection Main. Check your")
Console.WriteLine("command line for errors.")
End Try
End Sub
End Class
End Namespace ' Samples.Aspnet.SystemWebConfiguration
備註
類別 TraceSection 提供一種方式，以程式設計方式存取和修改組態檔 trace 區段的內容。 區 trace 段會設定 ASP.NET 追蹤功能，並控制如何收集、儲存及顯示追蹤結果。
啟用追蹤時，每個頁面要求都會產生可附加至頁面輸出或儲存在應用程式追蹤記錄中的追蹤訊息。 您可以使用 ASP.NET 追蹤查看器 (Trace.axd) 來檢視追蹤記錄的內容。
建構函式
| TraceSection() |
使用預設值初始化 TraceSection 類別的新執行個體。 |
