XmlSerializerNamespaces XmlSerializerNamespaces XmlSerializerNamespaces XmlSerializerNamespaces Class

定義

將 XML 命名空間 (Namespace) 和 XmlSerializer 用來產生限定名稱的前置詞包含在 XML 文件執行個體中。Contains the XML namespaces and prefixes that the XmlSerializer uses to generate qualified names in an XML-document instance.

public ref class XmlSerializerNamespaces
public class XmlSerializerNamespaces
type XmlSerializerNamespaces = class
Public Class XmlSerializerNamespaces
繼承
XmlSerializerNamespacesXmlSerializerNamespacesXmlSerializerNamespacesXmlSerializerNamespaces

範例

下列範例會建立XmlSerializerNamespaces物件, 並將兩個前置詞和命名空間配對加入其中。The following example creates an XmlSerializerNamespaces object, and adds two prefix and namespace pairs to it. 然後, 此範例會XmlSerializerNamespaces將傳遞SerializeBooks方法, 以將物件序列化為 XML 檔。The example then passes the XmlSerializerNamespaces to the Serialize method, which serializes a Books object into an XML document. 使用物件時Serialize , 方法會以這兩個命名空間的其中一個來限定每個 XML 元素和屬性。 XmlSerializerNamespacesUsing the XmlSerializerNamespaces object, the Serialize method qualifies each XML element and attribute with one of the two namespaces.

#using <System.Xml.dll>
#using <System.dll>

using namespace System;
using namespace System::IO;
using namespace System::Xml;
using namespace System::Xml::Serialization;
public ref class Price
{
public:

   [XmlAttributeAttribute(Namespace="http://www.cpandl.com")]
   String^ currency;

   [XmlElement(Namespace="http://www.cohowinery.com")]
   Decimal price;
};

[XmlType(Namespace="http://www.cpandl.com")]
public ref class Book
{
public:

   [XmlElement(Namespace="http://www.cpandl.com")]
   String^ TITLE;

   [XmlElement(Namespace="http://www.cohowinery.com")]
   Price^ PRICE;
};

public ref class Books
{
public:

   [XmlElement(Namespace="http://www.cohowinery.com")]
   Book^ Book;
};

public ref class Run
{
public:
   static void main()
   {
      Run^ test = gcnew Run;
      test->SerializeObject( "XmlNamespaces.xml" );
   }

   void SerializeObject( String^ filename )
   {
      XmlSerializer^ s = gcnew XmlSerializer( Books::typeid );

      // Writing a file requires a TextWriter.
      TextWriter^ t = gcnew StreamWriter( filename );

      /* Create an XmlSerializerNamespaces object and add two
            prefix-namespace pairs. */
      XmlSerializerNamespaces^ ns = gcnew XmlSerializerNamespaces;
      ns->Add( "books", "http://www.cpandl.com" );
      ns->Add( "money", "http://www.cohowinery.com" );

      // Create a Book instance.
      Book^ b = gcnew Book;
      b->TITLE = "A Book Title";
      Price^ p = gcnew Price;
      p->price = (Decimal)9.95;
      p->currency = "US Dollar";
      b->PRICE = p;
      Books^ bks = gcnew Books;
      bks->Book = b;
      s->Serialize( t, bks, ns );
      t->Close();
   }
};

int main()
{
   Run::main();
}
using System;
using System.IO;
using System.Xml;
using System.Xml.Serialization;
 
public class Run
{
   public static void Main()
   {
      Run test = new Run();
      test.SerializeObject("XmlNamespaces.xml");
   }
 
   public void SerializeObject(string filename)
   {
      XmlSerializer s = new XmlSerializer(typeof(Books));
      // Writing a file requires a TextWriter.
      TextWriter t = new StreamWriter(filename);

      /* Create an XmlSerializerNamespaces object and add two
      prefix-namespace pairs. */
      XmlSerializerNamespaces ns = new XmlSerializerNamespaces();
      ns.Add("books", "http://www.cpandl.com");
      ns.Add("money", "http://www.cohowinery.com");

      // Create a Book instance.
      Book b = new Book();
      b.TITLE = "A Book Title";
      Price p = new Price();
      p.price = (decimal) 9.95;
      p.currency = "US Dollar";
      b.PRICE = p;
      Books bks = new Books();
      bks.Book = b;
      s.Serialize(t,bks,ns);
      t.Close();
   }
}

public class Books
{
   [XmlElement(Namespace = "http://www.cohowinery.com")]
   public Book Book;
}

[XmlType(Namespace ="http://www.cpandl.com")]
public class Book
{
   [XmlElement(Namespace = "http://www.cpandl.com")]
   public string TITLE;
   [XmlElement(Namespace ="http://www.cohowinery.com")]
   public Price PRICE;
}

public class Price
{
   [XmlAttribute(Namespace = "http://www.cpandl.com")]
   public string currency;
   [XmlElement(Namespace = "http://www.cohowinery.com")]
   public decimal price;
}

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


Public Class Run
    
    Public Shared Sub Main()
        Dim test As New Run()
        test.SerializeObject("XmlNamespaces.xml")
    End Sub    
    
    Public Sub SerializeObject(ByVal filename As String)
        Dim s As New XmlSerializer(GetType(Books))
        ' Writing a file requires a TextWriter.
        Dim t As New StreamWriter(filename)
        
        ' Create an XmlSerializerNamespaces object and add two
        ' prefix-namespace pairs. 
        Dim ns As New XmlSerializerNamespaces()
        ns.Add("books", "http://www.cpandl.com")
        ns.Add("money", "http://www.cohowinery.com")
        
        ' Create a Book instance.
        Dim b As New Book()
        b.TITLE = "A Book Title"
        Dim p As New Price()
        p.price = CDec(9.95)
        p.currency = "US Dollar"
        b.PRICE = p
        Dim bks As New Books()
        bks.Book = b
        s.Serialize(t, bks, ns)
        t.Close()
    End Sub
End Class

Public Class Books
    <XmlElement(Namespace := "http://www.cohowinery.com")> _
    Public Book As Book
End Class

<XmlType(Namespace := "http://www.cpandl.com")> _
Public Class Book
    <XmlElement(Namespace := "http://www.cpandl.com")> _
    Public TITLE As String

    <XmlElement(Namespace := "http://www.cohowinery.com")> _
    Public PRICE As Price
End Class

Public Class Price
    <XmlAttribute(Namespace := "http://www.cpandl.com")> _
    Public currency As String
    
    <XmlElement(Namespace := "http://www.cohowinery.com")> _
    Public price As Decimal
End Class

備註

XmlSerializerNamespaces包含 XML 命名空間的集合, 每個都有相關聯的前置詞。The XmlSerializerNamespaces contains a collection of XML namespaces, each with an associated prefix. XmlSerializer使用XmlSerializerNamespaces類別的實例來建立 XML 檔中的限定名稱。The XmlSerializer uses an instance of the XmlSerializerNamespaces class to create qualified names in an XML document.

所包含XmlSerializerNamespaces的 xml 命名空間必須符合 xml 中名為命名空間的 W3C 規格。XML namespaces contained by the XmlSerializerNamespaces must conform to the W3C specification named Namespaces in XML.

XML 命名空間提供一種方式來限定 XML 檔中 XML 專案和屬性的名稱。XML namespaces provide a way to qualify the names of XML elements and attributes in XML documents. 限定名稱 (Qualified Name) 是由前置詞和本機名稱所組成,並以半形冒號 (:) 隔開。A qualified name consists of a prefix and a local name, separated by a colon. 前置詞的作用只是個替代符號 (Placeholder),它會對應到指定命名空間的 URI。The prefix functions only as a placeholder; it is mapped to a URI that specifies a namespace. 通用管理的 URI 命名空間與區功能變數名稱稱的組合, 會產生保證是通用唯一的名稱。The combination of the universally-managed URI namespace and the local name produces a name that is guaranteed to be universally unique.

若要在 XML 檔中建立限定名稱:To create qualified names in an XML document:

  1. XmlSerializerNamespaces建立實例。Create an XmlSerializerNamespaces instance.

  2. Add您想要實例的每個前置詞和命名空間配對。Add each prefix and namespace pair that you want to the instance.

  3. 將 appropriate.NET 屬性套用至序列化為 XML 檔的每XmlSerializer個屬性或類別。Apply the appropriate.NET attribute to each property or class that the XmlSerializer serializes into an XML document. 可用的屬性為:The available attributes are:

  1. 將每個屬性的XmlSerializerNamespaces 屬性設定為物件的其中一個命名空間值。NamespaceSet the Namespace property of each attribute to one of the namespace values from the XmlSerializerNamespaces object.

  2. 傳遞 XmlSerializerNamespacesSerializeXmlSerializer 方法。Pass the XmlSerializerNamespaces to the Serialize method of the XmlSerializer.

注意

不支援建立空的命名空間和前置詞配對。The creation of an empty namespace and prefix pair is not supported. 也就是說, 您無法使用下列程式碼建立配對:That is, you cannot create a pair using the following code:

XmlSerializerNamespaces ns = new XmlSerializerNamespaces();   
ns.Add("", "");  
Dim ns As XmlSerializerNamespaces ns = New XmlSerializerNamespaces()  
ns.Add("", "")  

建構函式

XmlSerializerNamespaces() XmlSerializerNamespaces() XmlSerializerNamespaces() XmlSerializerNamespaces()

初始化 XmlSerializerNamespaces 類別的新執行個體。Initializes a new instance of the XmlSerializerNamespaces class.

XmlSerializerNamespaces(XmlQualifiedName[]) XmlSerializerNamespaces(XmlQualifiedName[]) XmlSerializerNamespaces(XmlQualifiedName[]) XmlSerializerNamespaces(XmlQualifiedName[])

初始化 XmlSerializerNamespaces 類別的新執行個體。Initializes a new instance of the XmlSerializerNamespaces class.

XmlSerializerNamespaces(XmlSerializerNamespaces) XmlSerializerNamespaces(XmlSerializerNamespaces) XmlSerializerNamespaces(XmlSerializerNamespaces) XmlSerializerNamespaces(XmlSerializerNamespaces)

使用包含前置詞和命名空間配對集合之 XmlSerializerNamespaces 的指定執行個體,初始化 XmlSerializerNamespaces 類別的新執行個體。Initializes a new instance of the XmlSerializerNamespaces class, using the specified instance of XmlSerializerNamespaces containing the collection of prefix and namespace pairs.

屬性

Count Count Count Count

取得集合中前置詞和命名空間配對的數目。Gets the number of prefix and namespace pairs in the collection.

方法

Add(String, String) Add(String, String) Add(String, String) Add(String, String)

將前置詞和命名空間配對加入 XmlSerializerNamespaces 物件。Adds a prefix and namespace pair to an XmlSerializerNamespaces object.

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

判斷指定的物件是否等於目前的物件。Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

做為預設雜湊函式。Serves as the default hash function.

(Inherited from Object)
GetType() GetType() GetType() GetType()

取得目前執行個體的 TypeGets the Type of the current instance.

(Inherited from Object)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

建立目前 Object 的淺層複本 (Shallow Copy)。Creates a shallow copy of the current Object.

(Inherited from Object)
ToArray() ToArray() ToArray() ToArray()

取得 XmlSerializerNamespaces 物件中前置詞和命名空間配對的陣列。Gets the array of prefix and namespace pairs in an XmlSerializerNamespaces object.

ToString() ToString() ToString() ToString()

傳回代表目前物件的字串。Returns a string that represents the current object.

(Inherited from Object)

適用於

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