XmlSchemaMaxLengthFacet Class
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XmlSchemaMaxLengthFacet Class

 

Represents the maxLength element from XML Schema as specified by the World Wide Web Consortium (W3C). This class can be used to specify a restriction on the maximum length of the data value of a simpleType element. The length must be less than the value of the maxLength element.

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

System.Object
  System.Xml.Schema.XmlSchemaObject
    System.Xml.Schema.XmlSchemaAnnotated
      System.Xml.Schema.XmlSchemaFacet
        System.Xml.Schema.XmlSchemaNumericFacet
          System.Xml.Schema.XmlSchemaMaxLengthFacet

public class XmlSchemaMaxLengthFacet : XmlSchemaNumericFacet

NameDescription
System_CAPS_pubmethodXmlSchemaMaxLengthFacet()

Initializes a new instance of the XmlSchemaMaxLengthFacet class.

NameDescription
System_CAPS_pubpropertyAnnotation

Gets or sets the annotation property.(Inherited from XmlSchemaAnnotated.)

System_CAPS_pubpropertyId

Gets or sets the string id.(Inherited from XmlSchemaAnnotated.)

System_CAPS_pubpropertyIsFixed

Gets or sets information that indicates that this facet is fixed.(Inherited from XmlSchemaFacet.)

System_CAPS_pubpropertyLineNumber

Gets or sets the line number in the file to which the schema element refers.(Inherited from XmlSchemaObject.)

System_CAPS_pubpropertyLinePosition

Gets or sets the line position in the file to which the schema element refers.(Inherited from XmlSchemaObject.)

System_CAPS_pubpropertyNamespaces

Gets or sets the XmlSerializerNamespaces to use with this schema object.(Inherited from XmlSchemaObject.)

System_CAPS_pubpropertyParent

Gets or sets the parent of this XmlSchemaObject.(Inherited from XmlSchemaObject.)

System_CAPS_pubpropertySourceUri

Gets or sets the source location for the file that loaded the schema.(Inherited from XmlSchemaObject.)

System_CAPS_pubpropertyUnhandledAttributes

Gets or sets the qualified attributes that do not belong to the current schema's target namespace.(Inherited from XmlSchemaAnnotated.)

System_CAPS_pubpropertyValue

Gets or sets the value attribute of the facet.(Inherited from XmlSchemaFacet.)

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

The following example shows the use of the XmlSchemaMaxLengthFacet class.

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

class XMLSchemaExamples
{
    public static void Main()
    {

        XmlSchema schema = new XmlSchema();

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

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

        // <xs:maxLength value="10"/>
        XmlSchemaMaxLengthFacet maxLength = new XmlSchemaMaxLengthFacet();
        maxLength.Value = "10";
        restriction.Facets.Add(maxLength);

        ZipCodeType.Content = restriction;

        schema.Items.Add(ZipCodeType);

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

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

        // <xs:attribute name="ZipCode" type="ZipCodeType"/>
        XmlSchemaAttribute ZipCodeAttribute = new XmlSchemaAttribute();
        ZipCodeAttribute.Name = "ZipCode";
        ZipCodeAttribute.SchemaTypeName = new XmlQualifiedName("ZipCodeType", "");

        complexType.Attributes.Add(ZipCodeAttribute);

        element.SchemaType = complexType;

        schema.Items.Add(element);

        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="ZipCodeType">
		<xs:restriction base="xs:string">
			<xs:maxLength value="10"/>
		</xs:restriction>
	</xs:simpleType>

	<xs:element name="Address">
		<xs:complexType>
			<xs:attribute name="ZipCode" type="ZipCodeType"/>
		</xs:complexType>
	</xs:element>

</xs:schema>

.NET Framework
Available since 1.1

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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