XmlSchemaCollection Class
Note: This API is now obsolete.
Contains a cache of XML Schema definition language (XSD) and XML-Data Reduced (XDR) schemas. The XmlSchemaCollection class class is obsolete. Use XmlSchemaSet instead.
Assembly: System.Xml (in System.Xml.dll)
The XmlSchemaCollection type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | XmlSchemaCollection() | Initializes a new instance of the XmlSchemaCollection class. |
![]() | XmlSchemaCollection(XmlNameTable) | Initializes a new instance of the XmlSchemaCollection class with the specified XmlNameTable. The XmlNameTable is used when loading schemas. |
| Name | Description | |
|---|---|---|
![]() | Add(XmlSchema) | Adds the XmlSchema to the collection. |
![]() | Add(XmlSchemaCollection) | Adds all the namespaces defined in the given collection (including their associated schemas) to this collection. |
![]() | Add(String, String) | Adds the schema located by the given URL into the schema collection. |
![]() | Add(String, XmlReader) | Adds the schema contained in the XmlReader to the schema collection. |
![]() | Add(XmlSchema, XmlResolver) | Adds the XmlSchema to the collection. The specified XmlResolver is used to resolve any external references. |
![]() | Add(String, XmlReader, XmlResolver) | Adds the schema contained in the XmlReader to the schema collection. The specified XmlResolver is used to resolve any external resources. |
![]() | Contains(String) | Gets a value indicating whether a schema with the specified namespace is in the collection. |
![]() | Contains(XmlSchema) | Gets a value indicating whether the targetNamespace of the specified XmlSchema is in the collection. |
![]() | CopyTo | Copies all the XmlSchema objects from this collection into the given array starting at the given index. |
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetEnumerator | Provides support for the "for each" style iteration over the collection of schemas. |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
|---|---|---|
![]() | ValidationEventHandler | Sets an event handler for receiving information about the XDR and XML schema validation errors. |
| Name | Description | |
|---|---|---|
![]() | AsParallel | Enables parallelization of a query. (Defined by ParallelEnumerable.) |
![]() | AsQueryable | Converts an IEnumerable to an IQueryable. (Defined by Queryable.) |
![]() | Cast<TResult> | Converts the elements of an IEnumerable to the specified type. (Defined by Enumerable.) |
![]() | OfType<TResult> | Filters the elements of an IEnumerable based on a specified type. (Defined by Enumerable.) |
| Name | Description | |
|---|---|---|
![]() ![]() | ICollection::CopyTo | For a description of this member, see XmlSchemaCollection::CopyTo. |
![]() ![]() | ICollection::Count | For a description of this member, see XmlSchemaCollection::Count. |
![]() ![]() | ICollection::IsSynchronized | For a description of this member, see ICollectionIsSynchronized(). |
![]() ![]() | ICollection::SyncRoot | For a description of this member, see ICollectionSyncRoot(). |
![]() ![]() | IEnumerable::GetEnumerator | For a description of this member, see XmlSchemaCollection::GetEnumerator. |
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 |
|---|
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.
#using <System.Xml.dll> #using <System.dll> using namespace System; using namespace System::Xml; using namespace System::Xml::Schema; using namespace System::IO; public ref class ValidXSD { public: static void main() { XmlSchemaCollection^ sc = gcnew XmlSchemaCollection; sc->ValidationEventHandler += gcnew ValidationEventHandler( ValidationCallBack ); sc->Add( nullptr, "books.xsd" ); if ( sc->Count > 0 ) { XmlTextReader^ tr = gcnew XmlTextReader( "notValidXSD.xml" ); XmlValidatingReader^ rdr = gcnew XmlValidatingReader( tr ); rdr->ValidationType = ValidationType::Schema; rdr->Schemas->Add( sc ); rdr->ValidationEventHandler += gcnew ValidationEventHandler( ValidationCallBack ); while ( rdr->Read() ) ; } } private: static void ValidationCallBack( Object^ /*sender*/, ValidationEventArgs^ e ) { Console::WriteLine( "Validation Error: {0}", e->Message ); } }; int main() { ValidXSD::main(); }
.NET Framework
Supported in: 1.1, 1.0Obsolete (compiler warning) in 4
Obsolete (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
.NET Framework Client Profile
Obsolete (compiler warning) in 4Obsolete (compiler warning) in 3.5 SP1
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

