XmlSchemaEnumerationFacet Class

Definition

Represents the enumeration facet from XML Schema as specified by the World Wide Web Consortium (W3C). This class specifies a list of valid values for a simpleType element. Declaration is contained within a restriction declaration.

public class XmlSchemaEnumerationFacet : System.Xml.Schema.XmlSchemaFacet
Inheritance

Examples

The following example shows the use of the XmlSchemaEnumerationFacet class.

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

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

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

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

        // <xs:enumeration value="Small"/>
        XmlSchemaEnumerationFacet enumerationSmall = new XmlSchemaEnumerationFacet();
        enumerationSmall.Value = "Small";
        restriction.Facets.Add(enumerationSmall);

        // <xs:enumeration value="Medium"/>
        XmlSchemaEnumerationFacet enumerationMedium = new XmlSchemaEnumerationFacet();
        enumerationMedium.Value = "Medium";
        restriction.Facets.Add(enumerationMedium);

        // <xs:enumeration value="Large"/>
        XmlSchemaEnumerationFacet enumerationLarge = new XmlSchemaEnumerationFacet();
        enumerationLarge.Value = "Large";
        restriction.Facets.Add(enumerationLarge);

        SizeType.Content = restriction;

        schema.Items.Add(SizeType);

        // <xs:element name="Item">
        XmlSchemaElement elementItem = new XmlSchemaElement();
        elementItem.Name = "Item";

        // <xs:complexType>
        XmlSchemaComplexType complexType = new XmlSchemaComplexType();

        // <xs:attribute name="Size" type="SizeType"/>
        XmlSchemaAttribute attributeSize = new XmlSchemaAttribute();
        attributeSize.Name = "Size";
        attributeSize.SchemaTypeName = new XmlQualifiedName("SizeType", "");
        complexType.Attributes.Add(attributeSize);

        elementItem.SchemaType = complexType;

        schema.Items.Add(elementItem);

        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="SizeType">
    <xs:restriction base="xs:string">
      <xs:enumeration value="Small" />
      <xs:enumeration value="Medium" />
      <xs:enumeration value="Large" />
    </xs:restriction>
  </xs:simpleType>
  <xs:element name="Item">
    <xs:complexType>
      <xs:attribute name="Size" type="SizeType" />
    </xs:complexType>
  </xs:element>
</xs:schema>

Constructors

XmlSchemaEnumerationFacet()

Initializes a new instance of the XmlSchemaEnumerationFacet class.

Properties

Annotation

Gets or sets the annotation property.

(Inherited from XmlSchemaAnnotated)
Id

Gets or sets the string id.

(Inherited from XmlSchemaAnnotated)
IsFixed

Gets or sets information that indicates that this facet is fixed.

(Inherited from XmlSchemaFacet)
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)
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)
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)
Value

Gets or sets the value attribute of the facet.

(Inherited from XmlSchemaFacet)

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

제품 버전
.NET Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1