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XmlSchemaSimpleType Class

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.

Namespace:  System.Xml.Schema
Assembly:  System.Xml (in System.Xml.dll)

public class XmlSchemaSimpleType : XmlSchemaType

The XmlSchemaSimpleType type exposes the following members.

  NameDescription
Public methodSupported by the XNA FrameworkXmlSchemaSimpleTypeInitializes a new instance of the XmlSchemaSimpleType class.
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  NameDescription
Public propertySupported by the XNA FrameworkAnnotationGets or sets the annotation property. (Inherited from XmlSchemaAnnotated.)
Public propertySupported by the XNA FrameworkBaseSchemaType 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.)
Public propertySupported by the XNA FrameworkBaseXmlSchemaTypeGets the post-compilation value for the base type of this schema type. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkContentGets or sets one of XmlSchemaSimpleTypeUnion, XmlSchemaSimpleTypeList, or XmlSchemaSimpleTypeRestriction.
Public propertySupported by the XNA FrameworkDatatypeGets the post-compilation value for the data type of the complex type. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkDerivedByGets the post-compilation information on how this element was derived from its base type. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkFinalGets or sets the final attribute of the type derivation that indicates if further derivations are allowed. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkFinalResolvedGets the post-compilation value of the Final property. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkIdGets or sets the string id. (Inherited from XmlSchemaAnnotated.)
Public propertySupported by the XNA FrameworkIsMixedGets 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.)
Public propertySupported by the XNA FrameworkLineNumberGets or sets the line number in the file to which the schema element refers. (Inherited from XmlSchemaObject.)
Public propertySupported by the XNA FrameworkLinePositionGets or sets the line position in the file to which the schema element refers. (Inherited from XmlSchemaObject.)
Public propertySupported by the XNA FrameworkNameGets or sets the name of the type. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkNamespacesGets or sets the XmlSerializerNamespaces to use with this schema object. (Inherited from XmlSchemaObject.)
Public propertySupported by the XNA FrameworkParentGets or sets the parent of this XmlSchemaObject. (Inherited from XmlSchemaObject.)
Public propertySupported by the XNA FrameworkQualifiedNameGets the qualified name for the type built from the Name attribute of this type. This is a post-schema-compilation property. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkSourceUriGets or sets the source location for the file that loaded the schema. (Inherited from XmlSchemaObject.)
Public propertySupported by the XNA FrameworkTypeCodeGets the XmlTypeCode of the type. (Inherited from XmlSchemaType.)
Public propertySupported by the XNA FrameworkUnhandledAttributesGets or sets the qualified attributes that do not belong to the current schema's target namespace. (Inherited from XmlSchemaAnnotated.)
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  NameDescription
Public methodSupported by the XNA FrameworkEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodSupported by the XNA FrameworkFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodSupported by the XNA FrameworkGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodSupported by the XNA FrameworkGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodSupported by the XNA FrameworkMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodSupported by the XNA FrameworkToStringReturns a string that represents the current object. (Inherited from Object.)
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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.

The following example shows the use of the XmlSchemaSimpleType class.

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);
    }
}

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>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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