SoapElementAttribute.DataType Propiedad

Definición

Espacio de nombres:

System.Xml.Serialization

Ensamblados:

netstandard.dll, System.Xml.XmlSerializer.dll

Source:

SoapElementAttribute.cs

Obtiene o establece el tipo de datos lenguaje de definición de esquema XML (XSD) del elemento XML generado.

public:
 property System::String ^ DataType { System::String ^ get(); void set(System::String ^ value); };

public string DataType { get; set; }

member this.DataType : string with get, set

Public Property DataType As String

Valor de propiedad

String

Uno de los tipos de datos de esquema XML.

Ejemplos

En el ejemplo siguiente se serializa una instancia de una clase denominada Transportation que contiene un campo denominado Vehicle. Se SoapElementAttribute aplica a un campo. Cuando se serializa el campo, el nombre del elemento XML es "Wheels" en lugar de "Vehicle". El SerializeOverride método crea un SoapElementAttribute objeto y establece la SoapElement propiedad de en SoapAttributes .SoapElementAttribute SoapAttributes se agrega a un SoapAttributeOverrides objeto que se usa para crear un XmlTypeMapping. XmlSerializer Se crea con , XmlTypeMappingy se vuelve a serializar una instancia de la Transportation clase . SoapElementAttribute Dado que se usa para invalidar la serialización, el nombre del elemento XML generado ahora es "Truck" en lugar de "Wheels".

using System;
using System.IO;
using System.Xml.Serialization;
using System.Collections;
using System.Xml;
using System.Text;
public class Transportation
{
   // The SoapElementAttribute specifies that the
   // generated XML element name will be "Wheels"
   // instead of "Vehicle".
   [SoapElement("Wheels")]
   public string Vehicle;
   [SoapElement(DataType = "dateTime")]
   public DateTime CreationDate;
   [SoapElement(IsNullable = true)]
   public Thing thing;
}

public class Thing{
   [SoapElement(IsNullable=true)] public string ThingName;
}

public class Test
{
   public static void Main()
   {
      Test t = new Test();
      t.SerializeObject("SoapElementOriginal.xml");
      t.SerializeOverride("SoapElementOverride.xml");
      Console.WriteLine("Finished writing two XML files.");
   }

   // Return an XmlSerializer used for overriding.
   public XmlSerializer CreateSoapOverrider()
   {
      // Create the SoapAttributes and SoapAttributeOverrides objects.
      SoapAttributes soapAttrs = new SoapAttributes();

      SoapAttributeOverrides soapOverrides =
      new SoapAttributeOverrides();

      /* Create an SoapElementAttribute to override
      the Vehicles property. */
      SoapElementAttribute soapElement1 =
      new SoapElementAttribute("Truck");
      // Set the SoapElement to the object.
      soapAttrs.SoapElement= soapElement1;

      /* Add the SoapAttributes to the SoapAttributeOverrides,
      specifying the member to override. */
      soapOverrides.Add(typeof(Transportation), "Vehicle", soapAttrs);

      // Create the XmlSerializer, and return it.
      XmlTypeMapping myTypeMapping = (new SoapReflectionImporter
      (soapOverrides)).ImportTypeMapping(typeof(Transportation));
      return new XmlSerializer(myTypeMapping);
   }

   public void SerializeOverride(string filename)
   {
      // Create an XmlSerializer instance.
      XmlSerializer ser = CreateSoapOverrider();

      // Create the object and serialize it.
      Transportation myTransportation =
      new Transportation();

      myTransportation.Vehicle = "MyCar";
      myTransportation.CreationDate=DateTime.Now;
      myTransportation.thing = new Thing();

      XmlTextWriter writer =
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      ser.Serialize(writer, myTransportation);
      writer.WriteEndElement();
      writer.Close();
   }
   public void SerializeObject(string filename){
      // Create an XmlSerializer instance.
      XmlSerializer ser = new XmlSerializer(typeof(Transportation));
      Transportation myTransportation =
      new Transportation();
      myTransportation.Vehicle = "MyCar";
      myTransportation.CreationDate = DateTime.Now;
      myTransportation.thing = new Thing();
      XmlTextWriter writer =
      new XmlTextWriter(filename, Encoding.UTF8);
      writer.Formatting = Formatting.Indented;
      writer.WriteStartElement("wrapper");
      ser.Serialize(writer, myTransportation);
      writer.WriteEndElement();
      writer.Close();
   }
}

Imports System.IO
Imports System.Xml.Serialization
Imports System.Collections
Imports System.Xml
Imports System.Text

Public Class Transportation
   ' The SoapElementAttribute specifies that the
   ' generated XML element name will be "Wheels"
   ' instead of "Vehicle".
   <SoapElement("Wheels")> Public Vehicle As String 
   <SoapElement(DataType:= "dateTime")> _
   public CreationDate As DateTime    
   <SoapElement(IsNullable:= true)> _
   public thing As Thing
End Class

Public Class Thing
   <SoapElement(IsNullable:=true)> public ThingName As string 
End Class

Public Class Test

   Shared Sub Main()
      Dim t As Test = New Test()
      t.SerializeObject("SoapElementOriginalVb.xml")
      t.SerializeOverride("SoapElementOverrideVb.xml")
      Console.WriteLine("Finished writing two XML files.")
   End Sub

   ' Return an XmlSerializer used for overriding.
   Public Function CreateSoapOverrider() As XmlSerializer 
      ' Create the SoapAttributes and SoapAttributeOverrides objects.
      Dim soapAttrs As SoapAttributes = New SoapAttributes()

      Dim soapOverrides As SoapAttributeOverrides = _
      New SoapAttributeOverrides()
            
      ' Create a SoapElementAttribute to override 
      ' the Vehicles property. 
      Dim soapElement1 As SoapElementAttribute = _
      New SoapElementAttribute("Truck")
      ' Set the SoapElement to the object.
      soapAttrs.SoapElement= soapElement1

      ' Add the SoapAttributes to the SoapAttributeOverrides,
      ' specifying the member to override. 
      soapOverrides.Add(GetType(Transportation), "Vehicle", soapAttrs)
      
      ' Create the XmlSerializer, and return it.
      Dim myTypeMapping As XmlTypeMapping = (New _
      SoapReflectionImporter (soapOverrides)).ImportTypeMapping _
      (GetType(Transportation))
      return New XmlSerializer(myTypeMapping)
   End Function

   Public Sub SerializeOverride(filename As String)
      ' Create an XmlSerializer instance.
      Dim ser As XmlSerializer = CreateSoapOverrider()

      ' Create the object and serialize it.
      Dim myTransportation As Transportation = _
      New Transportation()

      myTransportation.Vehicle = "MyCar"
      myTransportation.CreationDate = DateTime.Now
      myTransportation.thing= new Thing()
      
      Dim writer As XmlTextWriter = _
      New XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ser.Serialize(writer, myTransportation)
      writer.WriteEndElement()
      writer.Close()
   End Sub

   Public Sub SerializeObject(filename As String)
      ' Create an XmlSerializer instance.
      Dim ser As XmlSerializer = _
      New XmlSerializer(GetType(Transportation))
      
      Dim myTransportation As Transportation = _
      New Transportation()
      
      myTransportation.Vehicle = "MyCar"
      myTransportation.CreationDate=DateTime.Now
      myTransportation.thing= new Thing()

      Dim writer As XmlTextWriter = _
      new XmlTextWriter(filename, Encoding.UTF8)
      writer.Formatting = Formatting.Indented
      writer.WriteStartElement("wrapper")
      ser.Serialize(writer, myTransportation)
      writer.WriteEndElement()
      writer.Close()
   End Sub
End Class

Comentarios

En la tabla siguiente se enumeran los tipos de datos simples de esquema XML con sus equivalentes de .NET.

Para los tipos de datos y esquema base64Binary XML, use una matriz de Byte estructuras y aplique un SoapElementAttribute con el DataType establecido en "base64Binary" o "hexBinary", según hexBinary corresponda. Para los tipos de datos y date esquema time XML, use el DateTime tipo y aplique con SoapElementAttribute el DataType establecido en "fecha" o "hora".

Para cada tipo de datos de esquema XML que se asigna a una cadena, aplique con SoapElementAttribute su DataType propiedad establecida en el tipo de esquema XML. Tenga en cuenta que esto no cambia el formato de serialización, solo el esquema del miembro.

Nota:

La propiedad distingue mayúsculas de minúsculas, por lo que debe establecerla exactamente en uno de los tipos de datos de esquema XML.

Nota:

Pasar datos binarios como un elemento XML es más eficaz que pasarlos como un atributo XML.

Para obtener más información sobre los tipos de datos XML, vea el documento World Wide Web Consortium, Esquema XML Parte 2: Tipos de datos.

Tipo de datos XSD	Tipo de datos de .NET
anyURI	String
base64Binary	Matriz de Byte objetos
booleano	Boolean
byte	SByte
date	DateTime
fechaHora	DateTime
Decimal	Decimal
double	Double
ENTITY	String
ENTIDADES	String
flotante	Single
gDay	String
gMonth	String
gMonthDay	String
gYear	String
AñoMes	String
hexBinary	Matriz de Byte objetos
ID	String
IDREF	String
IDREFS	String
int	Int32
entero	String
lenguaje	String
largo	Int64
Nombre	String
NCName	String
negativeInteger	String
NMTOKEN	String
NMTOKENS	String
normalizedString	String
nonNegativeInteger	String
nonPositiveInteger	String
NOTACIÓN	String
positiveInteger	String
QName	XmlQualifiedName
duración	String
cuerda / cadena	String
short	Int16
time	DateTime
token	String
byte sin signo	Byte
unsignedInt	UInt32
unsignedLong	UInt64
entero corto sin signo	UInt16