CustomErrorsSection Class

Article
05/19/2022

Configures ASP.NET custom error messages.

Syntax

class CustomErrorsSection : ConfigurationSectionWithCollection

Methods

The following table lists the methods exposed by the CustomErrorsSection class.

Name	Description
Add	(Inherited from ConfigurationSectionWithCollection.)
Clear	(Inherited from `ConfigurationSectionWithCollection`.)
Get	(Inherited from `ConfigurationSectionWithCollection`.)
GetAllowDefinition	(Inherited from ConfigurationSection.)
GetAllowLocation	(Inherited from `ConfigurationSection`.)
Remove	(Inherited from `ConfigurationSectionWithCollection`.)
RevertToParent	(Inherited from `ConfigurationSection`.)
SetAllowDefinition	(Inherited from `ConfigurationSection`.)
SetAllowLocation	(Inherited from `ConfigurationSection`.)

Properties

The following table lists the properties exposed by the CustomErrorsSection class.

Name	Description
`CustomErrors`	An array of CustomError values that specify ASP.NET custom errors.
`DefaultRedirect`	A required, nonempty read/write `string` value that contains the default path of either an HTTP error message file or the URL of an error message. This value is inherited by the `Redirect` property of newly created CustomError objects.
`Location`	(Inherited from `ConfigurationSection`.) A key property.
`Mode`	A read/write `sint32` enumeration that specifies whether custom or default error pages are shown locally or remotely. The possible values are listed later in the Remarks section.
`Path`	(Inherited from `ConfigurationSection`.) A key property.
`SectionInformation`	(Inherited from `ConfigurationSection`.)

Subclasses

This class contains no subclasses.

Remarks

The custom errors represented by the CustomErrorsSection class are specific to ASP.NET and are in the <system.web> section of the Web.config file. Each of these errors is represented by an instance of the CustomError class.

The custom errors represented by the HttpErrorsSection class are related to IIS 7 and are in the <system.webServer> section of the ApplicationHost.config file. Each of these errors is represented by an instance of the HttpErrorElement class. The integration of ASP.NET with IIS in IIS 7 made this name change necessary.

The following table lists the possible values for the Mode property. The default is 0 (RemoteOnly).

Value	Keyword	Description
0	`RemoteOnly`	The default ASP.NET error page is shown to local users. Remote users will receive a custom error page if one is defined. If no custom error page is defined for the error received, an IIS error page is shown.
1	`On`	A user-defined ASP.NET custom error page is shown for both local and remote users.
2	`Off`	The default ASP.NET error page is shown for both local and remote users.

Example

The following example sets the DefaultRedirect property to "CustomError.htm" and the Mode property to On.

' Connect to the WMI WebAdministration namespace.  
Set oWebAdmin = GetObject("winmgmts:root\WebAdministration")  
  
' Get the custom errors section for the default Web site.  
Set oSite = oWebAdmin.Get("Site.Name='Default Web Site'")  
oSite.GetSection "CustomErrorsSection", oSection  
  
' Set the default redirect page to CustomError.htm,  
' and set the Mode property to On.  
oSection.DefaultRedirect = "CustomError.htm"  
oSection.Mode = 1  
oSection.Put_

Inheritance Hierarchy

ConfigurationSection

ConfigurationSectionWithCollection

CustomErrorsSection

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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