Validate single node

joxa83 · January 9th, 2009, 07:54 AM

how to validate sigle node against a schema?

Martin Honnen · January 9th, 2009, 08:02 AM

You need to provide details of your context. Do you use the .NET framework and its DOM model for instance? Then there is a method Validate on the XmlDocument instance that you can use http://msdn.microsoft.com/en-us/library/ms162372.aspx

joxa83 · January 9th, 2009, 08:11 AM

I load a XMLDocument with some XML, then I select particular node, which I would like to validate.

XmlDocument xmlDoc = new XmlDocument();

xmlDoc.Schemas.Add(null, @"C:\Documents and Settings\ajoksimovic\My Documents\Visual Studio 2005\Projects\ConsoleApplication7\ConsoleApplicati on7\XMLSchema1.xsd");

xmlDoc.Load(@"C:\aco.xml");

xmlTemplateList = xmlDoc.DocumentElement.SelectNodes("//template");

Schema is

<?xml version="1.0" encoding="utf-8"?>
<xs:schema id="XMLSchema1" targetNamespace="http://tempuri.org/XMLSchema1.xsd" elementFormDefault="qualified" xmlns="http://tempuri.org/XMLSchema1.xsd" xmlns:mstns="http://tempuri.org/XMLSchema1.xsd" xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:element name="template">
<xs:complexType mixed="true">
<xs:sequence>
<xs:any minOccurs="0" />
</xs:sequence>
<xs:attribute name="datatableID" type="xs:unsignedInt" />
</xs:complexType>
</xs:element>

</xs:schema>

so each node in xmlTemplateList should validate against this schema, XMLDocument has overload for Validate

public void Validate(ValidationEventHandler validationEventHandler, XmlNode nodeToValidate); So i tried
xmlDoc.Validate(null,xmlTemplateList[0]) but it does not work in my case.

Martin Honnen · January 9th, 2009, 08:21 AM

Well try the method I did post a link to in my first reply.
However note that in the sample that you posted your schema has a targetNamespace while the XPath you pass to SelectNodes selects elements named 'template' in no namespace. So the schema you have will never apply to the selected nodes.