XmlReaderSettings.ValidationType Property
Gets or sets a value indicating whether the XmlReader will perform validation or type assignment when reading.
Namespace: System.Xml
Assembly: System.Xml (in System.Xml.dll)
Property Value
Type: System.Xml.ValidationTypeOne of the ValidationType values that indicates whether XmlReader will perform validation or type assignment when reading. The default is ValidationType.None.
The following table describes the ValidationType values.
NoteValidationType | Description | ||
|---|---|---|---|
DTD | Validation is performed using a document type definition (DTD).
| ||
None | The XmlReader does not validate data, or perform any type assignment. | ||
Schema | Validation and type assignment is performed using an XML Schema definition language (XSD) schema. The reader accesses the XML Schema using the following:
|
The following example validates using a schema stored in the XmlSchemaSet.
using System; using System.Xml; using System.Xml.Schema; using System.IO; public class Sample { public static void Main() { // Create the XmlSchemaSet class. XmlSchemaSet sc = new XmlSchemaSet(); // Add the schema to the collection. sc.Add("urn:bookstore-schema", "books.xsd"); // Set the validation settings. XmlReaderSettings settings = new XmlReaderSettings(); settings.ValidationType = ValidationType.Schema; settings.Schemas = sc; settings.ValidationEventHandler += new ValidationEventHandler (ValidationCallBack); // Create the XmlReader object. XmlReader reader = XmlReader.Create("booksSchemaFail.xml", settings); // Parse the file. while (reader.Read()); } // Display any validation errors. private static void ValidationCallBack(object sender, ValidationEventArgs e) { Console.WriteLine("Validation Error: {0}", e.Message); } }
The sample uses the following input files:
booksSchemaFail.xml
<?xml version='1.0'?>
<bookstore xmlns="urn:bookstore-schema">
<book>
<author>
<first-name>Benjamin</first-name>
<last-name>Franklin</last-name>
</author>
</book>
<book genre="novel">
<title>The Confidence Man</title>
<author>
<first-name>Herman</first-name>
<last-name>Melville</last-name>
</author>
<price>11.99</price>
</book>
<book genre="philosophy">
<title>The Gorgias</title>
<author>
<name>Plato</name>
</author>
<price>9.99</price>
</book>
</bookstore>
books.xsd
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns="urn:bookstore-schema"
elementFormDefault="qualified"
targetNamespace="urn:bookstore-schema">
<xsd:element name="bookstore" type="bookstoreType"/>
<xsd:complexType name="bookstoreType">
<xsd:sequence maxOccurs="unbounded">
<xsd:element name="book" type="bookType"/>
</xsd:sequence>
</xsd:complexType>
<xsd:complexType name="bookType">
<xsd:sequence>
<xsd:element name="title" type="xsd:string"/>
<xsd:element name="author" type="authorName"/>
<xsd:element name="price" type="xsd:decimal"/>
</xsd:sequence>
<xsd:attribute name="genre" type="xsd:string"/>
</xsd:complexType>
<xsd:complexType name="authorName">
<xsd:sequence>
<xsd:element name="first-name" type="xsd:string"/>
<xsd:element name="last-name" type="xsd:string"/>
</xsd:sequence>
</xsd:complexType>
</xsd:schema>
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.
