通过

TraceListenerCollection.Add 方法

  • 项目

将 TraceListener 添加到列表。

**命名空间:**System.Diagnostics
**程序集:**System（在 system.dll 中）

语法

声明
Public Function Add ( _
    listener As TraceListener _
) As Integer
用法
Dim instance As TraceListenerCollection
Dim listener As TraceListener
Dim returnValue As Integer

returnValue = instance.Add(listener)

public int Add (
    TraceListener listener
)

public:
int Add (
    TraceListener^ listener
)

public int Add (
    TraceListener listener
)

public function Add (
    listener : TraceListener
) : int

参数

返回值

插入新侦听器的位置。

示例

下面的示例创建输出到控制台屏幕的 TextWriterTraceListener。然后，该代码将新侦听器添加到 Trace.Listeners。

' Create a listener, which outputs to the console screen, and
' add it to the trace listeners. 
Dim myWriter As New TextWriterTraceListener()
myWriter.Writer = System.Console.Out
Trace.Listeners.Add(myWriter)

/* Create a listener, which outputs to the console screen, and 
  * add it to the trace listeners. */
 TextWriterTraceListener myWriter = new TextWriterTraceListener();
 myWriter.Writer = System.Console.Out;
 Trace.Listeners.Add(myWriter);
 

/* Create a listener, which outputs to the console screen, and 
 * add it to the trace listeners. */
TextWriterTraceListener^ myWriter = gcnew TextWriterTraceListener;
myWriter->Writer = System::Console::Out;
Trace::Listeners->Add( myWriter );

/* Create a listener, which outputs to the console screen, and 
 * add it to the trace listeners.
 */
TextWriterTraceListener myWriter = new TextWriterTraceListener();
myWriter.set_Writer(System.Console.get_Out());
Trace.get_Listeners().Add(myWriter);

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

.NET Compact Framework

受以下版本支持：2.0、1.0

请参见

参考

TraceListenerCollection 类
TraceListenerCollection 成员
System.Diagnostics 命名空间
TraceListenerCollection 类
TraceListener 类
DefaultTraceListener 类
TextWriterTraceListener 类
ConsoleTraceListener 类
Debug 类
Trace 类