XmlSchemaDatatype Class
The XmlSchemaDatatype class is an abstract class for mapping XML Schema definition language (XSD) types to Common Language Runtime (CLR) types.
Assembly: System.Xml (in System.Xml.dll)
| Name | Description | |
|---|---|---|
![]() | XmlSchemaDatatype() | Initializes a new instance of the XmlSchemaDatatype class. |
| Name | Description | |
|---|---|---|
![]() | TokenizedType | When overridden in a derived class, gets the type for the string as specified in the World Wide Web Consortium (W3C) XML 1.0 specification. |
![]() | TypeCode | Gets the XmlTypeCode value for the simple type. |
![]() | ValueType | When overridden in a derived class, gets the Common Language Runtime (CLR) type of the item. |
![]() | Variety | Gets the XmlSchemaDatatypeVariety value for the simple type. |
| Name | Description | |
|---|---|---|
![]() | ChangeType(Object, Type) | Converts the value specified, whose type is one of the valid Common Language Runtime (CLR) representations of the XML schema type represented by the XmlSchemaDatatype, to the CLR type specified. |
![]() | ChangeType(Object, Type, IXmlNamespaceResolver) | Converts the value specified, whose type is one of the valid Common Language Runtime (CLR) representations of the XML schema type represented by the XmlSchemaDatatype, to the CLR type specified using the IXmlNamespaceResolver if the XmlSchemaDatatype represents the xs:QName type or a type derived from it. |
![]() | 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.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | IsDerivedFrom(XmlSchemaDatatype) | The IsDerivedFrom method always returns false. |
![]() | MemberwiseClone() | |
![]() | ParseValue(String, XmlNameTable, IXmlNamespaceResolver) | When overridden in a derived class, validates the string specified against a built-in or user-defined simple type. |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
The following example shows use of the XmlSchemaDatatype class.
Imports System Imports System.Xml Imports System.Xml.Schema _ Class XMLSchemaExamples Public Shared Sub Main() Dim xtr As New XmlTextReader("example.xsd") Dim schema As XmlSchema = XmlSchema.Read(xtr, New ValidationEventHandler(AddressOf ValidationCallbackOne)) Dim schemaSet As New XmlSchemaSet() AddHandler schemaSet.ValidationEventHandler, AddressOf ValidationCallbackOne schemaSet.Add(schema) schemaSet.Compile() Dim compiledSchema As XmlSchema = Nothing For Each schema1 As XmlSchema In schemaSet.Schemas() compiledSchema = schema1 Next Dim schemaObject As XmlSchemaObject For Each schemaObject In compiledSchema.Items If schemaObject.GetType() Is GetType(XmlSchemaSimpleType) Then Dim simpleType As XmlSchemaSimpleType = CType(schemaObject, XmlSchemaSimpleType) Console.WriteLine("{0} {1}", simpleType.Name, simpleType.Datatype.ValueType) End If If schemaObject.GetType() Is GetType(XmlSchemaComplexType) Then Dim complexType As XmlSchemaComplexType = CType(schemaObject, XmlSchemaComplexType) Console.WriteLine("{0} {1}", complexType.Name, complexType.Datatype.ValueType) End If Next schemaObject xtr.Close() End Sub 'Main Public Shared Sub ValidationCallbackOne(ByVal sender As Object, ByVal args As ValidationEventArgs) Console.WriteLine(args.Message) End Sub 'ValidationCallbackOne End Class 'XMLSchemaExamples
The following XML file is used for the preceding code example.
<?xml version="1.0"?> <xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema"> <xs:simpleType name="LotteryNumber"> <xs:restriction base="xs:int"> <xs:minInclusive value="1"/> <xs:maxInclusive value="99"/> </xs:restriction> </xs:simpleType> </xs:schema>
Available since 1.1
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


