Information
The topic you requested is included in another documentation set. For convenience, it's displayed below. Choose Switch to see the topic in its original location.

XmlReader.ReadElementContentAsObject Method ()

Note: This method is new in the .NET Framework version 2.0.

Reads the current element and returns the contents as an Object.

Namespace: System.Xml
Assembly: System.Xml (in system.xml.dll)

public virtual Object ReadElementContentAsObject ()
public Object ReadElementContentAsObject ()
public function ReadElementContentAsObject () : Object

Return Value

A boxed common language runtime (CLR) object of the most appropriate type. The ValueType property determines the appropriate CLR type. If the content is typed as a list type, this method returns an array of boxed objects of the appropriate type.

Exception typeCondition

InvalidOperationException

The XmlReader is not positioned on an element.

XmlException

The current element contains child elements.

-or-

The element content cannot be converted to the requested type

ArgumentNullException

The method is called with a null reference (Nothing in Visual Basic) arguments.

This method reads the start tag, the contents of the element, and moves the reader past the end element tag. It expands entities and ignores processing instructions and comments. The element can only contain simple content. That is, it cannot have child elements.

For more information, see Reading Typed Data and the W3C XML Schema Part 2: Datatypes recommendation (http://www.w3.org/TR/xmlschema-2/).

The following example uses the method to read the content of the price node. The reader uses the information in the schema to map the content to the correct data type.

// Create a validating reader.
XmlReaderSettings settings = new XmlReaderSettings();
settings.ValidationType = ValidationType.Schema;
settings.Schemas.Add("urn:items", "item.xsd");    
 XmlReader reader = XmlReader.Create("item.xml", settings); 

// Get the CLR type of the price element. 
reader.ReadToFollowing("price");
Console.WriteLine(reader.ValueType);

// Return the value of the price element as Decimal object.
Decimal price = (Decimal) reader.ReadElementContentAsObject();

// Add 2.50 to the price.
price = Decimal.Add(price, 2.50m);


The example uses the following two files as input.

item.xml

<item xmlns="urn:items" productID='123098'>
 <name>hammer</name>
 <price>9.95</price>
 <supplierID>1929</supplierID>
</item>

item.xsd

<?xml version="1.0"?>
<xs:schema xmlns:tns="urn:items" attributeFormDefault="unqualified" elementFormDefault="qualified" targetNamespace="urn:items" xmlns:xs="http://www.w3.org/2001/XMLSchema">
  <xs:element name="item">
    <xs:complexType>
      <xs:sequence>
        <xs:element name="name" type="xs:string" />
        <xs:element name="price" type="xs:decimal" />
        <xs:element name="supplierID" type="xs:unsignedShort" />
      </xs:sequence>
      <xs:attribute name="productID" type="xs:unsignedInt" use="required" />
    </xs:complexType>
  </xs:element>
</xs:schema>

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

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

.NET Framework

Supported in: 2.0

.NET Compact Framework

Supported in: 2.0
Was this page helpful?
(1500 characters remaining)
Thank you for your feedback

Community Additions

Show:
© 2015 Microsoft