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TraceSwitch.TraceWarning Property

Gets a value indicating whether the switch allows warning messages.

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

public bool TraceWarning { get; }
/** @property */
public boolean get_TraceWarning ()

public function get TraceWarning () : boolean

Not applicable.

Property Value

true if the Level property is set to TraceLevel.Warning, TraceLevel.Info, or TraceLevel.Verbose; otherwise, false.

You can use the TraceError, TraceWarning, TraceInfo, and TraceVerbose properties in conjunction with the Debug and Trace classes to emit all messages with a specified importance or greater. When the Level property is set to TraceLevel.Warning, warnings and error-handling messages are emitted.

The following code example creates a new TraceSwitch and uses the switch to determine whether to emit error messages. The switch is created at the class level. MyMethod writes the first error message if the Level property is set to TraceLevel.Warning or higher. However, MyMethod does not write the second error message when the Level is less than TraceLevel.Verbose.

//Class-level declaration.
 /* Create a TraceSwitch to use in the entire application.*/
 static TraceSwitch mySwitch = new TraceSwitch("General", "Entire Application");
 
 static public void MyMethod() {
    // Write the message if the TraceSwitch level is set to Warning or higher.
    if(mySwitch.TraceWarning)
       Console.WriteLine("My error message.");
 
    // Write the message if the TraceSwitch level is set to Verbose.
    if(mySwitch.TraceVerbose)
       Console.WriteLine("My second error message.");
 }
 
 public static void Main(string[] args) {
    // Run the method that prints error messages based on the switch level.
    MyMethod();
 }
 

// Class-level declaration.
/* Create a TraceSwitch to use in the entire application.
 */
private static TraceSwitch mySwitch = 
    new TraceSwitch("General", "Entire Application");

public static void MyMethod()
{
    // Write the message if the TraceSwitch level is set to Warning or 
    // higher.
    if (mySwitch.get_TraceWarning()) {
        Console.WriteLine("My error message.");
    }

    // Write the message if the TraceSwitch level is set to Verbose.
    if (mySwitch.get_TraceVerbose()) {
        Console.WriteLine("My second error message.");
    }
} //MyMethod

public static void main(String[] args)
{
    // Run the method that prints error messages based on the switch level.
    MyMethod();
} //main

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

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