# <dataContractSerializer>

Contains configuration data for the DataContractSerializer. This element occurs in two different hierarchies. One is listed the following Schema Hierarchy section and the other is listed in the Remarks section.

<system.ServiceModel>
<behaviors>
<serviceBehaviors>
<behavior>
<dataContractSerializer>

## Syntax

<dataContractSerializer ignoreExtensionDataObject="Boolean"
maxItemsInObjectGraph="Integer" />


## Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

### Attributes

Element Description
ignoreExtensionDataObject A Boolean value that specifies whether to ignore data supplied by the endpoint when it is being serialized or deserialized. This attribute is settable only on the <dataContractSerializer> under the <behavior> element.
maxItemsInObjectGraph An integer that specifies the maximum number of items to serialize or deserialize. This attribute is 65536.

None.

### Parent Elements

Element Description
<behavior> A collection of settings for the behavior of a service.
<system.runtime.serialization> Represents the root element for the System.Runtime.Serialization namespace section and contains elements for setting options of the DataContractSerializer.

## Remarks

As stated in the Introduction of this topic, this is the second hierarchy in which the <X509Extension> element occurs.

<system.runtime.serialization>

<dataContractSerializer>