Trace.Write Method (Object)
Assembly: System (in System.dll)
By default, the output is written to an instance of DefaultTraceListener.
This method calls the Write method of the trace listener.
ASP.NET supplies tracing functionality tailored for Web pages. To write trace messages in ASP.NET pages, use the Page.Trace property. For more information about tracing in ASP.NET pages, see the ASP.NET Tracing Overview.
By default, in code associated with an ASP.NET Web page, the statement Trace.Write("...") is a call to the Write method of the Page.Trace property. To use the System.Diagnostics.Trace class in Web pages, you must include the namespace, for example, System.Diagnostics.Trace.Write("...").
The following example creates a TraceSwitch named generalSwitch. This switch is set outside the code sample.
If the switch is set to the TraceLevel Error or higher, the example outputs the first name of the value parameter to the Listeners. For information on adding a listener to the Listeners collection, see the TraceListenerCollection class.
Then, if the TraceLevel is set to Verbose, the example outputs a message on the same line as the first message. The second message is followed by a line terminator.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2