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CustomErrorCollection Class

Represents a collection of CustomError objects. This class cannot be inherited.

Namespace: System.Web.Configuration
Assembly: System.Web (in system.web.dll)
public sealed class CustomErrorCollection : ConfigurationElementCollection
public final class CustomErrorCollection extends ConfigurationElementCollection
public final class CustomErrorCollection extends ConfigurationElementCollection
Not applicable.

The CustomErrorCollection type allows access to the error elements of the customErrors section element collection.

It belongs to a group that includes the CustomError, CustomErrorsMode, and CustomErrorsSection.

This example demonstrates how to specify values declaratively for the error elements of the customErrors section, which can also be accessed as elements of the CustomErrorCollection collection.

The following configuration file example shows how to specify values declaratively for the error elements.

<customErrors mode="RemoteOnly"
  defaultRedirect="customerror.htm">
    <error statusCode="404" redirect="customerror404.htm"/>
</customErrors>

The following code example demonstrates how to use the CustomErrorCollection class.


// Get the Web application configuration.
System.Configuration.Configuration configuration = 
    WebConfigurationManager.OpenWebConfiguration(
    "/aspnetTest");

// Get the section.
CustomErrorsSection customErrorsSection =
  (CustomErrorsSection)configuration.GetSection(
  "system.web/customErrors");

// Get the collection
CustomErrorCollection customErrorsCollection = 
    customErrorsSection.Errors;


Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0
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