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Schemas, xsd, xdr

Schemas, xsd, xdr

Schemas, xsd, xdr Contents

Map Schemas using Model Groups
XSD Schema Mappings
General XSD Limitations
Extracting Schemas for Nested Classes
Creating Schemas from Assemblies
Strongly Typed .NET DataSet
XSD schemaLocation
Selecting Elements in Schemas
Specifying Namespaces
XSD targetNamespace
XSD Schemas
Convert XDR to XSD
Learn XSD Schemas .NET Tutorial
Conversion of genealogical files to XML with a DTD
AccessXML
Sorting by date without using a schema
Validating and enforcing a list of attribute values
Entity name support without DTDs
The Loss of Formatting When Adding a Schema
simple xml notepad
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Map Schemas using Wildcards

This section shows how we can map specific XML schema constructs to .NET classes with XML serialization attributes. All these mappings are automatically created by the XSD schema definition tool.

<any />

<xs:element name="car">

  <xs:complexType>

    <xs:sequence>

      <xs:element name="make"

        type="xs:string" />

      <xs:any namespace="##any"/>

    </xs:sequence>

  </xs:complexType>

</xs:element>

public class car {

  public string make;    

  [XmlAnyElementAttribute()]

  public System.Xml.XmlElement Any;

}

<anyAttribute />

<xs:element name="car">

  <xs:complexType>

    <xs:anyAttribute

      namespace="##any"/>

   </xs:complexType>

</xs:element>

public class car {

  [XmlAnyAttributeAttribute()]

  public System.Xml.XmlAttribute[]

    AnyAttr;

}

Hierarchies of Complex Types

<xs:complexType name="vehicle_t">

  <xs:sequence>

    <xs:element name="make"

      type="xs:string" />

    <xs:element name="model"

      type="xs:string" />

  </xs:sequence>

</xs:complexType>

<xs:element name="vehicle"

  type="vehicle_t" />

<xs:complexType name="car_t">

  <xs:complexContent>

    <xs:extension base="vehicle_t">

      <xs:sequence>

        <xs:element name="VIN"

          type="xs:string" />

      </xs:sequence>

    </xs:extension>

  </xs:complexContent>

</xs:complexType>

<xs:element name="car"

  type="car_t" />

[XmlIncludeAttribute(typeof(car_t))]

[XmlRootAttribute("vehicle",

    IsNullable=false)]

public class vehicle_t

{

  public string make;

  public string model;

}

[XmlRootAttribute("car",

    IsNullable=false)]

public class car_t : vehicle_t

{

  public string VIN;

}

The All Model Groups

<xs:element name="foo">

  <xs:complexType>

    <xs:all>

      <xs:element name="bar"

        type="xs:string" />

      <xs:element name="foobar"

        type="xs:int" />

    </xs:all>

  </xs:complexType>

</xs:element>

public class foo {

    public string bar;

    public int foobar;

}

Default Values

<xs:element name="Car">

  <xs:complexType>

    <xs:sequence>

      <xs:element name="make"

        type="xs:string"

        default="Ford" />

    </xs:sequence>

    <xs:attribute name="year"

        type="xs:string"

        default="2002" />

  <xs:complexType>

</xs:element>

public class Car

{

  [System.ComponentModel.

    DefaultValueAttribute(

    "Ford")]

  public string make="Ford";

  [XmlAttributeAttribute()]

  [System.ComponentModel.

    DefaultValueAttribute("2002")]

  public string year="2002";

}

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