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ConfigurationElementCollection.OnDeserializeUnrecognizedElement Method

Causes the configuration system to throw an exception.

Namespace:  System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)

protected override bool OnDeserializeUnrecognizedElement(
	string elementName,
	XmlReader reader
)

Parameters

elementName
Type: System.String

The name of the unrecognized element.

reader
Type: System.Xml.XmlReader

An input stream that reads XML from the configuration file.

Return Value

Type: System.Boolean
true if the unrecognized element was deserialized successfully; otherwise, false. The default is false.

ExceptionCondition
ConfigurationErrorsException

The element specified in elementName is the <clear> element.

ArgumentException

elementName starts with the reserved prefix "config" or "lock".

The OnDeserializeUnrecognizedElement is called when an unrecognized configuration element is read from a configuration file.

Override this method to provide custom handling of unrecognized configuration elements from a configuration file. The default return value, false, causes the configuration system to throw an exception.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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