ConfigurationSection.SetAllowDefinition Method

Article
06/14/2022

Sets the allowDefinition attribute for a configuration section.

Syntax

ConfigurationSection.SetAllowDefinition(AllowDefinition)

ConfigurationSection.SetAllowDefinition(AllowDefinition);

Parameters

Name	Definition
`AllowDefinition`	A `string` variable that specifies the value to which the `allowDefinition` attribute will be set. The possible attribute values are listed later in the Remarks section.

Return Value

This method does not return a value.

Remarks

allowDefinition attributes specify where in the configuration hierarchy values may be set for a given configuration section. These attributes are specified in the <configSections> section of the ApplicationHost.config file.

Because SetAllowDefinition is a static method, you should call it by getting a class object, as in the following example.

' Correct syntax:  
Set oAnonAuth = oWebAdmin.Get("AnonymousAuthenticationSection")  
oAnonAuth.SetAllowDefinition "MachineOnly"

The following syntax fails because it tries to call SetAllowDefinition on a concrete instance of the Site class. The call to the method will cause an "SWbemObjectEx: Not found" error.

' Incorrect syntax:  
Set oSite = oWebAdmin.Get("Site.Name='Default Web Site'")  
oSite.GetSection "AnonymousAuthenticationSection", oAnonAuth  
oAnonAuth.SetAllowDefinition "MachineOnly"

The following table lists the possible values for the allowDefinition attribute.

Keyword	Description
`Everywhere`	The section can be set anywhere in the hierarchy.
`MachineOnly`	The section can be set only in the Machine.config file. Note: The default location for the Machine.config file is %systemroot% Microsoft.NET\Framework\<version>\config\.
`MachineToWebRoot`	The section can be set only in the Machine.config file or the root Web.config file. Note: The default location for the root Web.config file is %systemroot% Microsoft.NET\Framework\<version>\config\.
`AppHostOnly`	The section can be set only in the ApplicationHost.config file.
`MachineToApplication`	The section can be set only at the global level. For .NET Framework sections, the global level is the root Web.config or Machine.config file; for IIS sections, it is the ApplicationHost.config file; and for applications, it is the Web.config file for the root application.

Example

The following example sets the allowDefinition attribute for the Anonymous authentication configuration section.

' Get the WebAdministration namespace.  
Set oWebAdmin = GetObject( _  
    "winmgmts:root\WebAdministration")  
  
' Get the AnonymousAuthenticationSection.  
Set oAnonAuth = oWebAdmin.Get( _  
    "AnonymousAuthenticationSection")  
  
' Set the AllowDefinition attribute.  
oAnonAuth.SetAllowDefinition "MachineToApplication"

Requirements

Type	Description
Client	- IIS 7.0 on Windows Vista - IIS 7.5 on Windows 7 - IIS 8.0 on Windows 8 - IIS 10.0 on Windows 10
Server	- IIS 7.0 on Windows Server 2008 - IIS 7.5 on Windows Server 2008 R2 - IIS 8.0 on Windows Server 2012 - IIS 8.5 on Windows Server 2012 R2 - IIS 10.0 on Windows Server 2016
Product	- IIS 7.0, IIS 7.5, IIS 8.0, IIS 8.5, IIS 10.0
MOF file	WebAdministration.mof

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