XmlSchemaAttributeGroup Class

Reference

Definition

Namespace:: System.Xml.Schema

Assembly:: System.Xml.ReaderWriter.dll

Assembly:: System.Xml.dll

Assembly:: netstandard.dll

Source:: XmlSchemaAttributeGroup.cs

Source:: XmlSchemaAttributeGroup.cs

Source:: XmlSchemaAttributeGroup.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Represents the attributeGroup element from the XML Schema as specified by the World Wide Web Consortium (W3C). AttributesGroups provides a mechanism to group a set of attribute declarations so that they can be incorporated as a group into complex type definitions.

public ref class XmlSchemaAttributeGroup : System::Xml::Schema::XmlSchemaAnnotated

public class XmlSchemaAttributeGroup : System.Xml.Schema.XmlSchemaAnnotated

type XmlSchemaAttributeGroup = class
    inherit XmlSchemaAnnotated

Public Class XmlSchemaAttributeGroup
Inherits XmlSchemaAnnotated

Inheritance: Object

XmlSchemaObject

XmlSchemaAnnotated
XmlSchemaAttributeGroup

Examples

The following example creates the attributeGroup element.

#using <mscorlib.dll>
#using <System.Xml.dll>

using namespace System;
using namespace System::Xml;
using namespace System::Xml::Schema;

class XmlSchemaExamples
{
public:
    
    static void Main()
    {
        XmlSchema^ schema = gcnew XmlSchema();

        // <xs:attributeGroup name="myAttributeGroup">
        XmlSchemaAttributeGroup^ myAttributeGroup = gcnew XmlSchemaAttributeGroup();
        schema->Items->Add(myAttributeGroup);
        myAttributeGroup->Name = "myAttributeGroup";

        // <xs:attribute name="someattribute1" type="xs:integer"/>
        XmlSchemaAttribute^ someattribute1 = gcnew XmlSchemaAttribute();
        myAttributeGroup->Attributes->Add(someattribute1);
        someattribute1->Name = "someattribute1";
        someattribute1->SchemaTypeName = gcnew XmlQualifiedName("integer", "http://www.w3.org/2001/XMLSchema");


        // <xs:attribute name="someattribute2" type="xs:string"/>
        XmlSchemaAttribute^ someattribute2 = gcnew XmlSchemaAttribute();
        myAttributeGroup->Attributes->Add(someattribute2);
        someattribute2->Name = "someattribute2";
        someattribute2->SchemaTypeName = gcnew XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");

        // <xs:complexType name="myElementType">
        XmlSchemaComplexType^ myElementType = gcnew XmlSchemaComplexType();
        schema->Items->Add(myElementType);
        myElementType->Name = "myElementType";

        // <xs:attributeGroup ref="myAttributeGroup"/>
        XmlSchemaAttributeGroupRef^ myAttributeGroupRef = gcnew XmlSchemaAttributeGroupRef();
        myElementType->Attributes->Add(myAttributeGroupRef);
        myAttributeGroupRef->RefName = gcnew XmlQualifiedName("myAttributeGroup");

        // <xs:attributeGroup name="myAttributeGroupA">
        XmlSchemaAttributeGroup^ myAttributeGroupA = gcnew XmlSchemaAttributeGroup();
        schema->Items->Add(myAttributeGroupA);
        myAttributeGroupA->Name = "myAttributeGroupA";

        // <xs:attribute name="someattribute10" type="xs:integer"/>
        XmlSchemaAttribute^ someattribute10 = gcnew XmlSchemaAttribute();
        myAttributeGroupA->Attributes->Add(someattribute10);
        someattribute10->Name = "someattribute10";
        someattribute10->SchemaTypeName = gcnew XmlQualifiedName("integer", "http://www.w3.org/2001/XMLSchema");

        // <xs:attribute name="someattribute11" type="xs:string"/>
        XmlSchemaAttribute^ someattribute11 = gcnew XmlSchemaAttribute();
        myAttributeGroupA->Attributes->Add(someattribute11);
        someattribute11->Name = "someattribute11";
        someattribute11->SchemaTypeName = gcnew XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");

        // <xs:attributeGroup name="myAttributeGroupB">
        XmlSchemaAttributeGroup^ myAttributeGroupB = gcnew XmlSchemaAttributeGroup();
        schema->Items->Add(myAttributeGroupB);
        myAttributeGroupB->Name = "myAttributeGroupB";

        // <xs:attribute name="someattribute20" type="xs:date"/>
        XmlSchemaAttribute^ someattribute20 = gcnew XmlSchemaAttribute();
        myAttributeGroupB->Attributes->Add(someattribute20);
        someattribute20->Name = "someattribute20";
        someattribute20->SchemaTypeName = gcnew XmlQualifiedName("date", "http://www.w3.org/2001/XMLSchema");

        // <xs:attributeGroup ref="myAttributeGroupA"/>
        XmlSchemaAttributeGroupRef^ myAttributeGroupRefA = gcnew XmlSchemaAttributeGroupRef();
        myAttributeGroupB->Attributes->Add(myAttributeGroupRefA);
        myAttributeGroupRefA->RefName = gcnew XmlQualifiedName("myAttributeGroupA");

        XmlSchemaSet^ schemaSet = gcnew XmlSchemaSet();
        schemaSet->ValidationEventHandler += gcnew ValidationEventHandler(ValidationCallbackOne);
        schemaSet->Add(schema);
        schemaSet->Compile();

        XmlSchema^ compiledSchema;

        for each (XmlSchema^ schema1 in schemaSet->Schemas())
        {
            compiledSchema = schema1;
        }

        XmlNamespaceManager^ nsmgr = gcnew XmlNamespaceManager(gcnew NameTable());
        nsmgr->AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        compiledSchema->Write(Console::Out, nsmgr);
    }

    static void ValidationCallbackOne(Object^ sender, ValidationEventArgs^ args)
    {
        Console::WriteLine(args->Message);
    }
};

int main()
{
    XmlSchemaExamples::Main();
    return 0;
};

using System;
using System.Xml;
using System.Xml.Schema;

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

        // <xs:attributeGroup name="myAttributeGroup">
        XmlSchemaAttributeGroup myAttributeGroup = new XmlSchemaAttributeGroup();
        schema.Items.Add(myAttributeGroup);
        myAttributeGroup.Name = "myAttributeGroup";

        // <xs:attribute name="someattribute1" type="xs:integer"/>
        XmlSchemaAttribute someattribute1 = 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"/>
        XmlSchemaAttribute someattribute2 = new XmlSchemaAttribute();
        myAttributeGroup.Attributes.Add(someattribute2);
        someattribute2.Name = "someattribute2";
        someattribute2.SchemaTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");

        // <xs:complexType name="myElementType">
        XmlSchemaComplexType myElementType = new XmlSchemaComplexType();
        schema.Items.Add(myElementType);
        myElementType.Name = "myElementType";

        // <xs:attributeGroup ref="myAttributeGroup"/>
        XmlSchemaAttributeGroupRef myAttributeGroupRef = new XmlSchemaAttributeGroupRef();
        myElementType.Attributes.Add(myAttributeGroupRef);
        myAttributeGroupRef.RefName = new XmlQualifiedName("myAttributeGroup");

        // <xs:attributeGroup name="myAttributeGroupA">
        XmlSchemaAttributeGroup myAttributeGroupA = new XmlSchemaAttributeGroup();
        schema.Items.Add(myAttributeGroupA);
        myAttributeGroupA.Name = "myAttributeGroupA";

        // <xs:attribute name="someattribute10" type="xs:integer"/>
        XmlSchemaAttribute someattribute10 = 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"/>
        XmlSchemaAttribute someattribute11 = new XmlSchemaAttribute();
        myAttributeGroupA.Attributes.Add(someattribute11);
        someattribute11.Name = "someattribute11";
        someattribute11.SchemaTypeName = new XmlQualifiedName("string", "http://www.w3.org/2001/XMLSchema");

        // <xs:attributeGroup name="myAttributeGroupB">
        XmlSchemaAttributeGroup myAttributeGroupB = new XmlSchemaAttributeGroup();
        schema.Items.Add(myAttributeGroupB);
        myAttributeGroupB.Name = "myAttributeGroupB";

        // <xs:attribute name="someattribute20" type="xs:date"/>
        XmlSchemaAttribute someattribute20 = new XmlSchemaAttribute();
        myAttributeGroupB.Attributes.Add(someattribute20);
        someattribute20.Name = "someattribute20";
        someattribute20.SchemaTypeName = new XmlQualifiedName("date", "http://www.w3.org/2001/XMLSchema");

        // <xs:attributeGroup ref="myAttributeGroupA"/>
        XmlSchemaAttributeGroupRef myAttributeGroupRefA = new XmlSchemaAttributeGroupRef();
        myAttributeGroupB.Attributes.Add(myAttributeGroupRefA);
        myAttributeGroupRefA.RefName = new XmlQualifiedName("myAttributeGroupA");

        XmlSchemaSet schemaSet = new XmlSchemaSet();
        schemaSet.ValidationEventHandler += new ValidationEventHandler(ValidationCallbackOne);
        schemaSet.Add(schema);
        schemaSet.Compile();

        XmlSchema compiledSchema = null;

        foreach (XmlSchema schema1 in schemaSet.Schemas())
        {
            compiledSchema = schema1;
        }

        XmlNamespaceManager nsmgr = new XmlNamespaceManager(new NameTable());
        nsmgr.AddNamespace("xs", "http://www.w3.org/2001/XMLSchema");
        compiledSchema.Write(Console.Out, nsmgr);
    }

    public static void ValidationCallbackOne(object sender, ValidationEventArgs args)
    {

        Console.WriteLine(args.Message);
    }
}

Option Strict On
Option Explicit On

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


    Public Shared Sub ValidationCallbackOne(ByVal sender As Object, ByVal args As ValidationEventArgs)

        Console.WriteLine(args.Message)
    End Sub
End Class

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>

Remarks

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.

Constructors

XmlSchemaAttributeGroup()

Initializes a new instance of the XmlSchemaAttributeGroup class.

Properties

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)

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (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)

Applies to

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