XmlSchemaDatatype Class
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XmlSchemaDatatype Class

 

The XmlSchemaDatatype class is an abstract class for mapping XML Schema definition language (XSD) types to Common Language Runtime (CLR) types.

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

System.Object
  System.Xml.Schema.XmlSchemaDatatype

public abstract class XmlSchemaDatatype

NameDescription
System_CAPS_protmethodXmlSchemaDatatype()

Initializes a new instance of the XmlSchemaDatatype class.

NameDescription
System_CAPS_pubpropertyTokenizedType

When overridden in a derived class, gets the type for the string as specified in the World Wide Web Consortium (W3C) XML 1.0 specification.

System_CAPS_pubpropertyTypeCode

Gets the XmlTypeCode value for the simple type.

System_CAPS_pubpropertyValueType

When overridden in a derived class, gets the Common Language Runtime (CLR) type of the item.

System_CAPS_pubpropertyVariety

Gets the XmlSchemaDatatypeVariety value for the simple type.

NameDescription
System_CAPS_pubmethodChangeType(Object, Type)

Converts the value specified, whose type is one of the valid Common Language Runtime (CLR) representations of the XML schema type represented by the XmlSchemaDatatype, to the CLR type specified.

System_CAPS_pubmethodChangeType(Object, Type, IXmlNamespaceResolver)

Converts the value specified, whose type is one of the valid Common Language Runtime (CLR) representations of the XML schema type represented by the XmlSchemaDatatype, to the CLR type specified using the IXmlNamespaceResolver if the XmlSchemaDatatype represents the xs:QName type or a type derived from it.

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_pubmethodIsDerivedFrom(XmlSchemaDatatype)

The IsDerivedFrom method always returns false.

System_CAPS_protmethodMemberwiseClone()

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

System_CAPS_pubmethodParseValue(String, XmlNameTable, IXmlNamespaceResolver)

When overridden in a derived class, validates the string specified against a built-in or user-defined simple type.

System_CAPS_pubmethodToString()

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

The following example shows use of the XmlSchemaDatatype class.

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

class XMLSchemaExamples
{
    public static void Main()
    {
        XmlTextReader xtr = new XmlTextReader("example.xsd");
        XmlSchema schema = XmlSchema.Read(xtr, new ValidationEventHandler(ValidationCallbackOne));

        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;
        }



        foreach (XmlSchemaObject schemaObject in compiledSchema.Items)
        {
            if (schemaObject.GetType() == typeof(XmlSchemaSimpleType))
            {
                XmlSchemaSimpleType simpleType = (XmlSchemaSimpleType)schemaObject;
                Console.WriteLine("{0} {1}", simpleType.Name, simpleType.Datatype.ValueType);
            }
            if (schemaObject.GetType() == typeof(XmlSchemaComplexType))
            {
                XmlSchemaComplexType complexType = (XmlSchemaComplexType)schemaObject;
                Console.WriteLine("{0} {1}", complexType.Name, complexType.Datatype.ValueType);
            }
        }
        xtr.Close();
    }

    public static void ValidationCallbackOne(object sender, ValidationEventArgs args)
    {
        Console.WriteLine(args.Message);
    }
}

The following XML file is used for the preceding code example.

<?xml version="1.0"?>
<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: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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