Debug.WriteLine Method (String)
Writes a message followed by a line terminator to the trace listeners in the Listeners collection.
Assembly: System (in System.dll)
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. Private Shared generalSwitch As New TraceSwitch("General", "Entire Application") Public Shared Sub MyErrorMethod() ' Write the message if the TraceSwitch level is set to Error or higher. If generalSwitch.TraceError Then Debug.Write("My error message. ") End If ' Write a second message if the TraceSwitch level is set to Verbose. If generalSwitch.TraceVerbose Then Debug.WriteLine("My second error message.") End If End Sub 'MyErrorMethod
Available since 8
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1