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Debug.Write Method (String, String)

Writes a category name and message to the trace listeners in the Listeners collection.

Namespace: System.Diagnostics
Assembly: System (in system.dll)

[ConditionalAttribute("DEBUG")] 
public static void Write (
	string message,
	string category
)
/** @attribute ConditionalAttribute("DEBUG") */ 
public static void Write (
	String message, 
	String category
)
ConditionalAttribute("DEBUG") 
public static function Write (
	message : String, 
	category : String
)

Parameters

message

A message to write.

category

A category name used to organize the output.

By default, the output is written to an instance of DefaultTraceListener.

Use the category parameter to group output messages.

This method calls the Write method of the trace listener.

The following example creates a TraceSwitch named generalSwitch. This switch is set outside of the code sample.

If the switch is set to the TraceLevelError or higher, the example outputs the first error message 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 the second error message on the same line as the first message. A line terminator follows the second message.

// Class-level declaration.
 // Create a TraceSwitch.
 static TraceSwitch generalSwitch = new TraceSwitch("General", "Entire Application");
 
 static public void MyErrorMethod(Object myObject, String category) {
    // Write the message if the TraceSwitch level is set to Error or higher.
    if(generalSwitch.TraceError)
       Debug.Write(myObject, category);
 
    // Write a second message if the TraceSwitch level is set to Verbose.
    if(generalSwitch.TraceVerbose)
       Debug.WriteLine(" Object is not valid for this category.");
 }


// Class-level declaration.
// Create a TraceSwitch.
private static TraceSwitch generalSwitch = 
    new TraceSwitch("General", "Entire Application");

public static void MyErrorMethod(Object myObject, String category)
{
    // Write the message if the TraceSwitch level is set to Error 
    // or higher.
    if (generalSwitch.get_TraceError()) {
        Debug.Write(myObject, category);
    }

    // Write a second message if the TraceSwitch level is set to Verbose.
    if (generalSwitch.get_TraceVerbose()) {
        Debug.WriteLine(" Object is not valid for this category.");
    }
} //MyErrorMethod

// Class level declaration.
 // Create a TraceSwitch.
 static var generalSwitch : TraceSwitch = new TraceSwitch("General", "Entire Application");
 
 static public function MyErrorMethod(myObject : Object, category : String) {
    // Write the message if the TraceSwitch level is set to Error or higher.
    if(generalSwitch.TraceError)
       Debug.Write(myObject, category);
 
    //Write a second message if the TraceSwitch level is set to Verbose.
    if(generalSwitch.TraceVerbose)
       Debug.WriteLine(" Object is not valid for this category.");
 }


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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

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