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<add> Element for <switches>

Specifies the level where a trace switch is set.

<configuration> Element
  <system.diagnostics> Element
    <switches> Element
      <add> Element for <switches>
<add name="switch name"
     value="value"/>

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

Attributes

Attribute

Description

name

Required attribute.

Specifies the name of the switch. The value of this attribute corresponds to the displayName parameter that is passed to switch constructor.

value

Required attribute.

Specifies the level of the switch.

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.

switches

Contains trace switches and the level where the trace switches are set.

system.diagnostics

Specifies trace listeners that collect, store, and route messages and the level where a trace switch is set.

You can change the level of a trace switch by putting it in a configuration file. If the switch is a BooleanSwitch, you can turn it on and off. If the switch is a TraceSwitch, you can assign different levels to it to specify the types of trace or debug messages the application outputs.

The following example shows how to use the <add> element to set the General trace switch to the TraceLevel.Error level, and enable the Data Boolean trace switch.

<configuration>
   <system.diagnostics>
      <switches>
         <add name="General" value="4" />
         <add name="Data" value="1" />
      </switches>
   </system.diagnostics>
</configuration>
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