.NET Framework Class Library
ConfigurationElementOnDeserializeUnrecognizedElement Method

Gets a value indicating whether an unknown element is encountered during deserialization.

Namespace:   System.Configuration
Assembly:  System.Configuration (in System.Configuration.dll)
Protected Overridable Function OnDeserializeUnrecognizedElement ( _
	elementName As [%$TOPIC/ms134132_en-us_VS_110_1_0_0_0_0%], _
	reader As [%$TOPIC/ms134132_en-us_VS_110_1_0_0_0_1%] _
) As [%$TOPIC/ms134132_en-us_VS_110_1_0_0_0_2%]
protected virtual [%$TOPIC/ms134132_en-us_VS_110_1_0_1_0_0%] OnDeserializeUnrecognizedElement(
	[%$TOPIC/ms134132_en-us_VS_110_1_0_1_0_1%] elementName,
	[%$TOPIC/ms134132_en-us_VS_110_1_0_1_0_2%] reader
virtual [%$TOPIC/ms134132_en-us_VS_110_1_0_2_0_0%] OnDeserializeUnrecognizedElement(
	[%$TOPIC/ms134132_en-us_VS_110_1_0_2_0_1%]^ elementName, 
	[%$TOPIC/ms134132_en-us_VS_110_1_0_2_0_2%]^ reader
abstract OnDeserializeUnrecognizedElement : 
        elementName:[%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_0%] * 
        reader:[%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_1%] -> [%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_2%]  
override OnDeserializeUnrecognizedElement : 
        elementName:[%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_3%] * 
        reader:[%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_4%] -> [%$TOPIC/ms134132_en-us_VS_110_1_0_3_0_5%]
protected function OnDeserializeUnrecognizedElement(
	elementName : [%$TOPIC/ms134132_en-us_VS_110_1_0_4_0_0%], 
	reader : [%$TOPIC/ms134132_en-us_VS_110_1_0_4_0_1%]
) : [%$TOPIC/ms134132_en-us_VS_110_1_0_4_0_2%]


Type: SystemString

The name of the unknown subelement.

Type: System.XmlXmlReader

The XmlReader being used for deserialization.

Return Value

Type: SystemBoolean
true when an unknown element is encountered while deserializing; otherwise, false.

The element identified by elementName is locked.

- or -

One or more of the element's attributes is locked.

- or -

elementName is unrecognized, or the element has an unrecognized attribute.

- or -

The element has a Boolean attribute with an invalid value.

- or -

An attempt was made to deserialize a property more than once.

- or -

An attempt was made to deserialize a property that is not a valid member of the element.

- or -

The element cannot contain a CDATA or text element.


The OnDeserializeUnrecognizedElement is invoked when an unknown attribute is encountered while deserializing the ConfigurationElement object.

Version Information

.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