XmlAttributes.XmlAttribute 属性

public:
 property System::Xml::Serialization::XmlAttributeAttribute ^ XmlAttribute { System::Xml::Serialization::XmlAttributeAttribute ^ get(); void set(System::Xml::Serialization::XmlAttributeAttribute ^ value); };

public System.Xml.Serialization.XmlAttributeAttribute XmlAttribute { get; set; }

public System.Xml.Serialization.XmlAttributeAttribute? XmlAttribute { get; set; }

member this.XmlAttribute : System.Xml.Serialization.XmlAttributeAttribute with get, set

Public Property XmlAttribute As XmlAttributeAttribute

属性值

控制将公共字段或读/写属性序列化为 XML 特性的 XmlAttributeAttribute。

示例

下面的示例序列化名为 的 Group 类，该类包含名为 的属性 GroupName;该 GroupName 属性序列化为 XML 特性。 该示例创建 XmlAttributeOverrides 和 XmlAttributes 对象来替代 字段的默认序列化。 然后，该示例创建一个 XmlAttributeAttribute 以专门重写 属性，并将 对象设置为 XmlAttribute 属性。对象 XmlAttributes 将添加到 XmlAttributeOverrides 具有指定重写成员的名称的对象。 最后， XmlSerializer 使用 XmlAttributeOverrides 对象构造并返回 。

using System;
using System.IO;
using System.Xml;
using System.Xml.Serialization;

// This is the class that will be serialized.
public class Group
{
   // This is the attribute that will be overridden.
   [XmlAttribute]
   public string GroupName;
   public int GroupNumber;
}

public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeObject("OverrideAttribute.xml");
      test.DeserializeObject("OverrideAttribute.xml");
   }
   // Return an XmlSerializer used for overriding.
   public XmlSerializer CreateOverrider()
   {
      // Create the XmlAttributeOverrides and XmlAttributes objects.
      XmlAttributeOverrides xOver = new XmlAttributeOverrides();
      XmlAttributes xAttrs = new XmlAttributes();

      /* Create an overriding XmlAttributeAttribute set it to
      the XmlAttribute property of the XmlAttributes object.*/
      XmlAttributeAttribute xAttribute = new XmlAttributeAttribute("SplinterName");
      xAttrs.XmlAttribute = xAttribute;

      // Add to the XmlAttributeOverrides. Specify the member name.
      xOver.Add(typeof(Group), "GroupName", xAttrs);

      // Create the XmlSerializer and return it.
      return new XmlSerializer(typeof(Group), xOver);
   }

   public void SerializeObject(string filename)
   {
      // Create an instance of the XmlSerializer class.
      XmlSerializer mySerializer =  CreateOverrider();
      // Writing the file requires a TextWriter.
      TextWriter writer = new StreamWriter(filename);

      // Create an instance of the class that will be serialized.
      Group myGroup = new Group();

      /* Set the Name property, which will be generated
      as an XML attribute. */
      myGroup.GroupName = ".NET";
      myGroup.GroupNumber = 1;
      // Serialize the class, and close the TextWriter.
      mySerializer.Serialize(writer, myGroup);
       writer.Close();
   }

   public void DeserializeObject(string filename)
   {
      XmlSerializer mySerializer = CreateOverrider();
      FileStream fs = new FileStream(filename, FileMode.Open);
      Group myGroup = (Group)
      mySerializer.Deserialize(fs);

      Console.WriteLine(myGroup.GroupName);
      Console.WriteLine(myGroup.GroupNumber);
   }
}

Imports System.IO
Imports System.Xml
Imports System.Xml.Serialization


' This is the class that will be serialized.
Public Class Group
    ' This is the attribute that will be overridden.
    <XmlAttribute()> Public GroupName As String
    Public GroupNumber As Integer
End Class


Public Class Run
    
    Public Shared Sub Main()
        Dim test As New Run()
        test.SerializeObject("OverrideAttribute.xml")
        test.DeserializeObject("OverrideAttribute.xml")
    End Sub
    
    ' Return an XmlSerializer used for overriding. 
    Public Function CreateOverrider() As XmlSerializer
        ' Create the XmlAttributeOverrides and XmlAttributes objects.
        Dim xOver As New XmlAttributeOverrides()
        Dim xAttrs As New XmlAttributes()
        
        ' Create an overriding XmlAttributeAttribute set it to
        ' the XmlAttribute property of the XmlAttributes object.
        Dim xAttribute As New XmlAttributeAttribute("SplinterName")
        xAttrs.XmlAttribute = xAttribute
        
        ' Add to the XmlAttributeOverrides. Specify the member name.
        xOver.Add(GetType(Group), "GroupName", xAttrs)
        
        ' Create the XmlSerializer and return it.
        Return New XmlSerializer(GetType(Group), xOver)
    End Function 'CreateOverrider
    
    
    Public Sub SerializeObject(ByVal filename As String)
        ' Create an instance of the XmlSerializer class.
        Dim mySerializer As XmlSerializer = CreateOverrider()
        ' Writing the file requires a TextWriter.
        Dim writer As New StreamWriter(filename)
        
        ' Create an instance of the class that will be serialized.
        Dim myGroup As New Group()
        
        ' Set the Name property, which will be generated
        ' as an XML attribute. 
        myGroup.GroupName = ".NET"
        myGroup.GroupNumber = 1
        ' Serialize the class, and close the TextWriter.
        mySerializer.Serialize(writer, myGroup)
        writer.Close()
    End Sub
    
    
    Public Sub DeserializeObject(ByVal filename As String)
        Dim mySerializer As XmlSerializer = CreateOverrider()
        Dim fs As New FileStream(filename, FileMode.Open)
        Dim myGroup As Group = CType(mySerializer.Deserialize(fs), Group)

        Console.WriteLine(myGroup.GroupName)
        Console.WriteLine(myGroup.GroupNumber)
    End Sub
End Class

注解

默认情况下，如果公共字段或公共读/写属性没有应用任何属性，则会将其序列化为 XML 元素。 还可以通过将 应用于XmlAttributeAttribute字段或属性来指示 XmlSerializer 生成 XML 属性。

属性 XmlAttribute 允许重写默认序列化，以及通过将 应用于 成员来控制的 XmlAttributeAttribute 序列化。 为此，请创建 XmlAttributeAttribute 并设置其属性 (，例如 AttributeName) 。 将新 对象分配给 XmlAttribute 对象的 XmlAttributes 属性。 将 XmlAttributes 对象添加到 对象 XmlAttributeOverrides ，并指定包含字段或属性的对象的类型，以及字段或属性的名称。 最后，使用 XmlAttributeOverrides 对象创建 XmlSerializer 并调用 Serialize 或 Deserialize 方法。