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XmlSchemaSimpleType Class

  • Reference

Definition

Namespace:
System.Xml.Schema
Assembly:
System.Xml.ReaderWriter.dll
Assembly:
System.Xml.dll
Assembly:
netstandard.dll
Source:
XmlSchemaSimpleType.cs
Source:
XmlSchemaSimpleType.cs
Source:
XmlSchemaSimpleType.cs

Represents the simpleType element for simple content from XML Schema as specified by the World Wide Web Consortium (W3C). This class defines a simple type. Simple types can specify information and constraints for the value of attributes or elements with text-only content.

public ref class XmlSchemaSimpleType : System::Xml::Schema::XmlSchemaType
public class XmlSchemaSimpleType : System.Xml.Schema.XmlSchemaType
type XmlSchemaSimpleType = class
    inherit XmlSchemaType
Public Class XmlSchemaSimpleType
Inherits XmlSchemaType
Inheritance
Object
XmlSchemaObject
XmlSchemaAnnotated
XmlSchemaType
XmlSchemaSimpleType

Examples

The following example shows the use of the XmlSchemaSimpleType class.

#using <System.Xml.dll>

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

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

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

        // <xs:simpleType name="LotteryNumber">
        XmlSchemaSimpleType^ LotteryNumberType = gcnew XmlSchemaSimpleType();
        LotteryNumberType->Name = "LotteryNumber";

        // <xs:restriction base="xs:int">
        XmlSchemaSimpleTypeRestriction^ LotteryNumberRestriction = gcnew XmlSchemaSimpleTypeRestriction();
        LotteryNumberRestriction->BaseTypeName = gcnew XmlQualifiedName("int", "http://www.w3.org/2001/XMLSchema");

        // <xs:minInclusive value="1"/>
        XmlSchemaMinInclusiveFacet^ minInclusive = gcnew XmlSchemaMinInclusiveFacet();
        minInclusive->Value = "1";
        LotteryNumberRestriction->Facets->Add(minInclusive);

        // <xs:maxInclusive value="99"/>
        XmlSchemaMaxInclusiveFacet^ maxInclusive = gcnew XmlSchemaMaxInclusiveFacet();
        maxInclusive->Value = "99";
        LotteryNumberRestriction->Facets->Add(maxInclusive);

        LotteryNumberType->Content = LotteryNumberRestriction;
        schema->Items->Add(LotteryNumberType);

        // <xs:simpleType name="LotteryNumberList">
        XmlSchemaSimpleType^ LotteryNumberListType = gcnew XmlSchemaSimpleType();
        LotteryNumberListType->Name = "LotteryNumberList";

        // <xs:list itemType="LotteryNumber"/>
        XmlSchemaSimpleTypeList^ list = gcnew XmlSchemaSimpleTypeList();
        list->ItemTypeName = gcnew XmlQualifiedName("LotteryNumber", "");
        LotteryNumberListType->Content = list;

        schema->Items->Add(LotteryNumberListType);

        // <xs:simpleType name="LotteryNumbers">
        XmlSchemaSimpleType^ LotteryNumbersType = gcnew XmlSchemaSimpleType();
        LotteryNumbersType->Name = "LotteryNumbers";

        // <xs:restriction base="LotteryNumberList">
        XmlSchemaSimpleTypeRestriction^ LotteryNumbersRestriction = gcnew XmlSchemaSimpleTypeRestriction();
        LotteryNumbersRestriction->BaseTypeName = gcnew XmlQualifiedName("LotteryNumberList", "");

        // <xs:length value="5"/>
        XmlSchemaLengthFacet^ length = gcnew XmlSchemaLengthFacet();
        length->Value = "5";
        LotteryNumbersRestriction->Facets->Add(length);

        LotteryNumbersType->Content = LotteryNumbersRestriction;

        schema->Items->Add(LotteryNumbersType);

        // <xs:element name="TodaysLottery" type="LotteryNumbers">
        XmlSchemaElement^ TodaysLottery = gcnew XmlSchemaElement();
        TodaysLottery->Name = "TodaysLottery";
        TodaysLottery->SchemaTypeName = gcnew XmlQualifiedName("LotteryNumbers", "");

        schema->Items->Add(TodaysLottery);

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

        XmlSchema^ compiledSchema = nullptr;

        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);
    }
};

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:simpleType name="LotteryNumber">
        XmlSchemaSimpleType LotteryNumberType = new XmlSchemaSimpleType();
        LotteryNumberType.Name = "LotteryNumber";

        // <xs:restriction base="xs:int">
        XmlSchemaSimpleTypeRestriction LotteryNumberRestriction = new XmlSchemaSimpleTypeRestriction();
        LotteryNumberRestriction.BaseTypeName = new XmlQualifiedName("int", "http://www.w3.org/2001/XMLSchema");

        // <xs:minInclusive value="1"/>
        XmlSchemaMinInclusiveFacet minInclusive = new XmlSchemaMinInclusiveFacet();
        minInclusive.Value = "1";
        LotteryNumberRestriction.Facets.Add(minInclusive);

        // <xs:maxInclusive value="99"/>
        XmlSchemaMaxInclusiveFacet maxInclusive = new XmlSchemaMaxInclusiveFacet();
        maxInclusive.Value = "99";
        LotteryNumberRestriction.Facets.Add(maxInclusive);

        LotteryNumberType.Content = LotteryNumberRestriction;
        schema.Items.Add(LotteryNumberType);

        // <xs:simpleType name="LotteryNumberList">
        XmlSchemaSimpleType LotteryNumberListType = new XmlSchemaSimpleType();
        LotteryNumberListType.Name = "LotteryNumberList";

        // <xs:list itemType="LotteryNumber"/>
        XmlSchemaSimpleTypeList list = new XmlSchemaSimpleTypeList();
        list.ItemTypeName = new XmlQualifiedName("LotteryNumber", "");
        LotteryNumberListType.Content = list;

        schema.Items.Add(LotteryNumberListType);

        // <xs:simpleType name="LotteryNumbers">
        XmlSchemaSimpleType LotteryNumbersType = new XmlSchemaSimpleType();
        LotteryNumbersType.Name = "LotteryNumbers";

        // <xs:restriction base="LotteryNumberList">
        XmlSchemaSimpleTypeRestriction LotteryNumbersRestriction = new XmlSchemaSimpleTypeRestriction();
        LotteryNumbersRestriction.BaseTypeName = new XmlQualifiedName("LotteryNumberList", "");

        // <xs:length value="5"/>
        XmlSchemaLengthFacet length = new XmlSchemaLengthFacet();
        length.Value = "5";
        LotteryNumbersRestriction.Facets.Add(length);

        LotteryNumbersType.Content = LotteryNumbersRestriction;

        schema.Items.Add(LotteryNumbersType);

        // <xs:element name="TodaysLottery" type="LotteryNumbers">
        XmlSchemaElement TodaysLottery = new XmlSchemaElement();
        TodaysLottery.Name = "TodaysLottery";
        TodaysLottery.SchemaTypeName = new XmlQualifiedName("LotteryNumbers", "");

        schema.Items.Add(TodaysLottery);

        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:simpleType name="LotteryNumber">
        Dim LotteryNumberType As New XmlSchemaSimpleType()
        LotteryNumberType.Name = "LotteryNumber"

        ' <xs:restriction base="xs:int">
        Dim LotteryNumberRestriction As New XmlSchemaSimpleTypeRestriction()
        LotteryNumberRestriction.BaseTypeName = New XmlQualifiedName("int", "http://www.w3.org/2001/XMLSchema")

        ' <xs:minInclusive value="1"/>
        Dim minInclusive As New XmlSchemaMinInclusiveFacet()
        minInclusive.Value = "1"
        LotteryNumberRestriction.Facets.Add(minInclusive)

        ' <xs:maxInclusive value="99"/>
        Dim maxInclusive As New XmlSchemaMaxInclusiveFacet()
        maxInclusive.Value = "99"
        LotteryNumberRestriction.Facets.Add(maxInclusive)

        LotteryNumberType.Content = LotteryNumberRestriction
        schema.Items.Add(LotteryNumberType)

        ' <xs:simpleType name="LotteryNumberList">
        Dim LotteryNumberListType As New XmlSchemaSimpleType()
        LotteryNumberListType.Name = "LotteryNumberList"

        ' <xs:list itemType="LotteryNumber"/>
        Dim list As New XmlSchemaSimpleTypeList()
        list.ItemTypeName = New XmlQualifiedName("LotteryNumber", "")
        LotteryNumberListType.Content = list

        schema.Items.Add(LotteryNumberListType)

        ' <xs:simpleType name="LotteryNumbers">
        Dim LotteryNumbersType As New XmlSchemaSimpleType()
        LotteryNumbersType.Name = "LotteryNumbers"

        ' <xs:restriction base="LotteryNumberList">
        Dim LotteryNumbersRestriction As New XmlSchemaSimpleTypeRestriction()
        LotteryNumbersRestriction.BaseTypeName = New XmlQualifiedName("LotteryNumberList", "")

        ' <xs:length value="5"/>
        Dim length As New XmlSchemaLengthFacet()
        length.Value = "5"
        LotteryNumbersRestriction.Facets.Add(length)

        LotteryNumbersType.Content = LotteryNumbersRestriction

        schema.Items.Add(LotteryNumbersType)

        ' <xs:element name="TodaysLottery" type="LotteryNumbers">
        Dim TodaysLottery As New XmlSchemaElement()
        TodaysLottery.Name = "TodaysLottery"
        TodaysLottery.SchemaTypeName = New XmlQualifiedName("LotteryNumbers", "")

        schema.Items.Add(TodaysLottery)

        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:simpleType name="LotteryNumber">
        <xs:restriction base="xs:int">
            <xs:minInclusive value="1"/>
            <xs:maxInclusive value="99"/>
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="LotteryNumberList">
        <xs:list itemType="LotteryNumber"/>
    </xs:simpleType>
    
    <xs:simpleType name="LotteryNumbers">
        <xs:restriction base="LotteryNumberList">
            <xs:length value="5"/>
        </xs:restriction>
    </xs:simpleType>
    
    <xs:element name="TodaysLottery" type="LotteryNumbers">
    </xs:element>
    
</xs:schema>

Remarks

Simple types are defined by deriving them from existing simple types (built-in data types and derived simple types). A simple type cannot contain elements and cannot have attributes.

Constructors

XmlSchemaSimpleType()

Initializes a new instance of the XmlSchemaSimpleType class.

Properties

Annotation

Gets or sets the annotation property.

(Inherited from XmlSchemaAnnotated)
BaseSchemaType
Obsolete.
Obsolete.
Obsolete.

Gets the post-compilation object type or the built-in XML Schema Definition Language (XSD) data type, simpleType element, or complexType element. This is a post-schema-compilation infoset property.

(Inherited from XmlSchemaType)
BaseXmlSchemaType

Gets the post-compilation value for the base type of this schema type.

(Inherited from XmlSchemaType)
Content

Gets or sets one of XmlSchemaSimpleTypeUnion, XmlSchemaSimpleTypeList, or XmlSchemaSimpleTypeRestriction.
Datatype

Gets the post-compilation value for the data type of the complex type.

(Inherited from XmlSchemaType)
DerivedBy

Gets the post-compilation information on how this element was derived from its base type.

(Inherited from XmlSchemaType)
Final

Gets or sets the final attribute of the type derivation that indicates if further derivations are allowed.

(Inherited from XmlSchemaType)
FinalResolved

Gets the post-compilation value of the Final property.

(Inherited from XmlSchemaType)
Id

Gets or sets the string id.

(Inherited from XmlSchemaAnnotated)
IsMixed

Gets or sets a value indicating if this type has a mixed content model. This property is only valid in a complex type.

(Inherited from XmlSchemaType)
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 type.

(Inherited from XmlSchemaType)
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 for the type built from the Name attribute of this type. This is a post-schema-compilation property.

(Inherited from XmlSchemaType)
SourceUri

Gets or sets the source location for the file that loaded the schema.

(Inherited from XmlSchemaObject)
TypeCode

Gets the XmlTypeCode of the type.

(Inherited from XmlSchemaType)
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