<remove> Element for <listeners> for <trace>

Article
12/13/2007

Removes a listener from the Listeners collection.

<remove name="listener name" />

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute	Description
name	Required attribute. The name of the listener to remove from the Listeners collection.

name

Required attribute.

The name of the listener to remove from the Listeners collection.

Child Elements

None.

Parent Elements

Element	Description
configuration	The root element in every configuration file used by the common language runtime and .NET Framework applications.
listeners	Specifies a listener that collects, stores, and routes messages. Listeners direct the tracing output to an appropriate target.
system.diagnostics	Specifies trace listeners that collect, store, and route messages and the level where a trace switch is set.
trace	Configures the ASP.NET trace service.

Remarks

Note
Removing the DefaultTraceListener from the Listeners collection alters the behavior of the System.Diagnostics.Debug.Assert, System.Diagnostics.Trace.Assert, System.Diagnostics.Debug.Fail, and System.Diagnostics.Trace.Fail methods. Calling an Assert or Fail method normally results in the display of a message box, however the message box is not displayed if the DefaultTraceListener is not in the Listeners collection.

Removing the DefaultTraceListener from the Listeners collection alters the behavior of the System.Diagnostics.Debug.Assert, System.Diagnostics.Trace.Assert, System.Diagnostics.Debug.Fail, and System.Diagnostics.Trace.Fail methods. Calling an Assert or Fail method normally results in the display of a message box, however the message box is not displayed if the DefaultTraceListener is not in the Listeners collection.

Example

The following example shows how to remove the default trace listener from the trace Listeners collection.

<configuration>
   <system.diagnostics>
      <trace autoflush="true" indentsize="0">
         <listeners>
            <remove name="Default" />
         </listeners>
      </trace>
   </system.diagnostics>
</configuration>