XmlSchemaAttributeGroup Class
Represents the attributeGroup element from the XML Schema as specified by the . AttributesGroups provides a mechanism to group a set of attribute declarations so that they can be incorporated as a group into complex type definitions.
System.Xml.Schema.XmlSchemaObject
System.Xml.Schema.XmlSchemaAnnotated
System.Xml.Schema.XmlSchemaAttributeGroup
Assembly: System.Xml (in System.Xml.dll)
The XmlSchemaAttributeGroup type exposes the following members.
| Name | Description | |
|---|---|---|
![]() ![]() | XmlSchemaAttributeGroup | Initializes a new instance of the XmlSchemaAttributeGroup class. |
| Name | Description | |
|---|---|---|
![]() ![]() | Annotation | Gets or sets the annotation property. (Inherited from XmlSchemaAnnotated.) |
![]() ![]() | AnyAttribute | Gets or sets the XmlSchemaAnyAttribute component of the attribute group. |
![]() ![]() | Attributes | Gets the collection of attributes for the attribute group. Contains XmlSchemaAttribute and XmlSchemaAttributeGroupRef elements. |
![]() ![]() | Id | Gets or sets the string id. (Inherited from XmlSchemaAnnotated.) |
![]() ![]() | LineNumber | Gets or sets the line number in the file to which the schema element refers. (Inherited from XmlSchemaObject.) |
![]() ![]() | LinePosition | Gets or sets the line position in the file to which the schema element refers. (Inherited from XmlSchemaObject.) |
![]() ![]() | Name | Gets or sets the name of the attribute group. |
![]() ![]() | Namespaces | Gets or sets the XmlSerializerNamespaces to use with this schema object. (Inherited from XmlSchemaObject.) |
![]() ![]() | Parent | Gets or sets the parent of this XmlSchemaObject. (Inherited from XmlSchemaObject.) |
![]() ![]() | QualifiedName | Gets the qualified name of the attribute group. |
![]() ![]() | RedefinedAttributeGroup | Gets the redefined attribute group property from the XML Schema. |
![]() ![]() | SourceUri | Gets or sets the source location for the file that loaded the schema. (Inherited from XmlSchemaObject.) |
![]() ![]() | UnhandledAttributes | Gets or sets the qualified attributes that do not belong to the current schema's target namespace. (Inherited from XmlSchemaAnnotated.) |
| Name | Description | |
|---|---|---|
![]() ![]() | 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 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.) |
An attribute group can be defined only as a child of the schema element. In this case, the name attribute must be present and contain the attribute, attributeGroup, or anyAttribute elements that make up the attribute group. When a complexType or an attributeGroup element includes an attribute group, the ref attribute must be present and the name attribute is not allowed.
The following example creates the attributeGroup element.
Option Strict On Option Explicit On Imports System Imports System.Xml Imports System.Xml.Schema Class XMLSchemaExamples Public Shared Sub Main() Dim schema As New XmlSchema() ' <xs:attributeGroup name="myAttributeGroup"> Dim myAttributeGroup As New XmlSchemaAttributeGroup() schema.Items.Add(myAttributeGroup) myAttributeGroup.Name = "myAttributeGroup" ' <xs:attribute name="someattribute1" type="xs:integer"/> Dim someattribute1 As New XmlSchemaAttribute() myAttributeGroup.Attributes.Add(someattribute1) someattribute1.Name = "someattribute1" someattribute1.SchemaTypeName = New XmlQualifiedName("integer", "http://www.w3.org/2001/XMLSchema") ' <xs:attribute name="someattribute2" type="xs:string"/> Dim someattribute2 As New XmlSchemaAttribute() myAttributeGroup.Attributes.Add(someattribute2) someattribute2.Name = "someattribute2" someattribute2.SchemaTypeName = New XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema") ' <xs:complexType name="myElementType"> Dim myElementType As New XmlSchemaComplexType() schema.Items.Add(myElementType) myElementType.Name = "myElementType" ' <xs:attributeGroup ref="myAttributeGroup"/> Dim myAttributeGroupRef As New XmlSchemaAttributeGroupRef() myElementType.Attributes.Add(myAttributeGroupRef) myAttributeGroupRef.RefName = New XmlQualifiedName("myAttributeGroup") ' <xs:attributeGroup name="myAttributeGroupA"> Dim myAttributeGroupA As New XmlSchemaAttributeGroup() schema.Items.Add(myAttributeGroupA) myAttributeGroupA.Name = "myAttributeGroupA" ' <xs:attribute name="someattribute10" type="xs:integer"/> Dim someattribute10 As New XmlSchemaAttribute() myAttributeGroupA.Attributes.Add(someattribute10) someattribute10.Name = "someattribute10" someattribute10.SchemaTypeName = New XmlQualifiedName("integer", "http://www.w3.org/2001/XMLSchema") ' <xs:attribute name="someattribute11" type="xs:string"/> Dim someattribute11 As New XmlSchemaAttribute() myAttributeGroupA.Attributes.Add(someattribute11) someattribute11.Name = "someattribute11" someattribute11.SchemaTypeName = New XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema") ' <xs:attributeGroup name="myAttributeGroupB"> Dim myAttributeGroupB As New XmlSchemaAttributeGroup() schema.Items.Add(myAttributeGroupB) myAttributeGroupB.Name = "myAttributeGroupB" ' <xs:attribute name="someattribute20" type="xs:date"/> Dim someattribute20 As New XmlSchemaAttribute() myAttributeGroupB.Attributes.Add(someattribute20) someattribute20.Name = "someattribute20" someattribute20.SchemaTypeName = New XmlQualifiedName("date", "http://www.w3.org/2001/XMLSchema") ' <xs:attributeGroup ref="myAttributeGroupA"/> Dim myAttributeGroupRefA As New XmlSchemaAttributeGroupRef() myAttributeGroupB.Attributes.Add(myAttributeGroupRefA) myAttributeGroupRefA.RefName = New XmlQualifiedName("myAttributeGroupA") 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 nsmgr As New XmlNamespaceManager(New NameTable()) nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema") compiledSchema.Write(Console.Out, nsmgr) 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 generated for the preceding code example.
<?xml version="1.0" encoding="IBM437"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
<xs:attributeGroup name="myAttributeGroup">
<xs:attribute name="someattribute1" type="xs:integer"/>
<xs:attribute name="someattribute2" type="xs:string"/>
</xs:attributeGroup>
<xs:complexType name="myElementType">
<xs:attributeGroup ref="myAttributeGroup"/>
</xs:complexType>
<xs:attributeGroup name="myAttributeGroupA">
<xs:attribute name="someattribute10" type="xs:integer"/>
<xs:attribute name="someattribute11" type="xs:string"/>
</xs:attributeGroup>
<xs:attributeGroup name="myAttributeGroupB">
<xs:attribute name="someattribute20" type="xs:date"/>
<xs:attributeGroup ref="myAttributeGroupA"/>
</xs:attributeGroup>
</xs:schema>
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.



