XmlSchemaCollection Class
NOTE: This API is now obsolete.
Contains a cache of XML Schema definition language (XSD) and XML-Data Reduced (XDR) schemas. This class cannot be inherited.
Assembly: System.Xml (in System.Xml.dll)
Schemas are loaded using the Add method, at which time the schema is associated with a namespace Uniform Resource Identifier (URI). For XML Schemas, this will typically be the targetNamespace property of the schema.
Although this class stores both XML Schemas and XDR schemas, any method and property that takes or returns an XmlSchema applies to XML Schemas only.
This version of the product supports the World Wide Web Consortium (W3C) XML Schema recommendation located at http://www.w3.org/TR/xmlschema-1 and http://www.w3.org/TR/xmlschema-2. An XML Schema must reference the W3C Schema namespace http://www.w3.org/2001/XMLSchema in its schema element. See the Add method for an example.
XmlSchemaCollection can be used by XmlValidatingReader for efficient data validation.
Important Note: |
|---|
The XmlSchemaCollection class is obsolete in the Microsoft .NET Framework version 2.0 and has been replaced by the XmlSchemaSet class. |
The following example validates an XML document using the XmlSchemaCollection.
Imports System Imports System.Xml Imports System.Xml.Schema Imports System.IO public class ValidXSD public shared sub Main() Dim sc as XmlSchemaCollection = new XmlSchemaCollection() AddHandler sc.ValidationEventHandler, AddressOf ValidationCallBack sc.Add(nothing, "books.xsd") if(sc.Count > 0) Dim tr as XmlTextReader = new XmlTextReader("notValidXSD.xml") Dim rdr as XmlValidatingReader = new XmlValidatingReader(tr) rdr.ValidationType = ValidationType.Schema rdr.Schemas.Add(sc) AddHandler rdr.ValidationEventHandler, AddressOf ValidationCallBack while (rdr.Read()) end while end if end sub private shared sub ValidationCallBack(sender as object, e as ValidationEventArgs) Console.WriteLine("XSD Error: {0}", e.Message) end sub end class
#using <mscorlib.dll>
#using <System.Xml.dll>
using namespace System;
using namespace System::Xml;
using namespace System::Xml::Schema;
using namespace System::IO;
public __gc class ValidXSD {
public:
static void main() {
XmlSchemaCollection* sc = new XmlSchemaCollection();
sc->ValidationEventHandler += new ValidationEventHandler(0, ValidationCallBack);
sc->Add(0, S"books.xsd");
if(sc->Count > 0)
{
XmlTextReader* tr = new XmlTextReader(S"notValidXSD.xml");
XmlValidatingReader* rdr = new XmlValidatingReader(tr);
rdr->ValidationType = ValidationType::Schema;
rdr->Schemas->Add(sc);
rdr->ValidationEventHandler += new ValidationEventHandler(0, ValidationCallBack);
while (rdr->Read());
}
}
private:
static void ValidationCallBack(Object* /*sender*/, ValidationEventArgs* e) {
Console::WriteLine(S"Validation Error: {0}", e->Message);
}
};
int main()
{
ValidXSD::main();
}
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 1.1, 1.0Obsolete (compiler warning) in 3.5
Obsolete (compiler warning) in 3.5 SP1
Obsolete (compiler warning) in 3.0
Obsolete (compiler warning) in 3.0 SP1
Obsolete (compiler warning) in 3.0 SP2
Obsolete (compiler warning) in 2.0
Obsolete (compiler warning) in 2.0 SP1
Obsolete (compiler warning) in 2.0 SP2
Important Note: