ASP.NET Syntax   ASP.NET Configuration Sections

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Removes all references to inherited sections and section groups, allowing only the sections and section groups that are added by the current section and sectionGroup elements.

<clear />

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

None.

None.

Element	Description
configuration	Specifies the required root element in every configuration file that is used by the common language runtime and the .NET Framework applications.
configSections	Specifies configuration section and namespace declarations.
sectionGroup	Defines an association between a configuration section handler and a configuration section.

The clear element removes all references to inherited sections and section groups, allowing only the sections and section groups that are added by the current section and sectionGroup elements.

If a configuration file tries to use a configuration section after the handler reference is removed, ASP.NET issues the server error, "Unrecognized configuration section element_name".

The following code example shows how to use the clear element in an application configuration file to clear sections that were previously defined in the Machine.config file.

The following code from a Machine.config file declares two sections, sampleSection and anotherSampleSection, which are read before the application configuration file.

<configuration>

   <configSections>
      <section name = "sampleSection"
         type = "System.Configuration.SingleTagSectionHandler" />
      <section name = "anotherSampleSection"
         type = "System.Configuration.NameValueSectionHandler" />
   </configSections>

   <sampleSection setting1 = "Value1" 
      setting2 = "value two"
      setting3 = "third value" />

</configuration>

The following code from an application configuration file clears all previously declared sections. The application cannot use or retrieve settings in either of the sections that were declared in the Machine.config file. However, the application can use settings from anotherSection because anotherSection is after the clear element.

<configuration>

   <configSections>
      <clear />
      <section name = "anotherSection"
         type = "System.Configuration.NameValueSectionHandler" />
   </configSections>

</configuration>

<configSections> Section   <configSections> remove Element   <configSections> section Element   <configSections> sectionGroup Element