XmlAttributeOverrides.Item[] 属性

定义

命名空间:: System.Xml.Serialization

程序集:: System.Xml.dll, System.Xml.XmlSerializer.dll

程序集:: netstandard.dll, System.Xml.XmlSerializer.dll

程序集:: System.Xml.XmlSerializer.dll

程序集:: System.Xml.dll

程序集:: netstandard.dll

重要

一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。

获取一个对象，该对象表示重写属性的集合。

重载

名称	说明
Item[Type]	获取与指定基类类型关联的对象。
Item[Type, String]	获取与指定（基类）类型关联的对象。成员参数指定被重写的基类成员。

Item[Type]

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

获取与指定基类类型关联的对象。

public:
 property System::Xml::Serialization::XmlAttributes ^ default[Type ^] { System::Xml::Serialization::XmlAttributes ^ get(Type ^ type); };

public System.Xml.Serialization.XmlAttributes this[Type type] { get; }

public System.Xml.Serialization.XmlAttributes? this[Type type] { get; }

member this.Item(Type) : System.Xml.Serialization.XmlAttributes

Default Public ReadOnly Property Item(type As Type) As XmlAttributes

参数

type: Type

与要检索的属性集合关联的基类 Type 。

属性值

XmlAttributes

一个 XmlAttributes 表示重写属性的集合。

示例

以下示例创建一个 XmlAttributeOverrides 对象、一个 XmlAttributes 对象和一个 XmlRootAttribute 对象。该示例将对象分配给XmlRootAttribute XmlRoot该对象的属性XmlAttributes，并将该XmlAttributes对象添加到XmlAttributeOverrides该对象。最后，该示例通过将序列化类传递给Type XmlAttributeOverrides对象来获取XmlAttributes对象。在本示例中，Type 为 Group。

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

public class Sample
{
public XmlSerializer CreateOverrider()
{
   // Create an XmlSerializer with overriding attributes.
   XmlAttributes attrs = new XmlAttributes();
   XmlAttributeOverrides xOver = new XmlAttributeOverrides();

   XmlRootAttribute xRoot = new XmlRootAttribute();
   // Set a new Namespace and ElementName for the root element.
   xRoot.Namespace = "http://www.cpandl.com";
   xRoot.ElementName = "NewGroup";
   attrs.XmlRoot = xRoot;

   xOver.Add(typeof(Group), attrs);

   // Get the XmlAttributes object, based on the type.
   XmlAttributes tempAttrs;
   tempAttrs = xOver[typeof(Group)];

   // Print the Namespace and ElementName of the root.
   Console.WriteLine(tempAttrs.XmlRoot.Namespace);
   Console.WriteLine(tempAttrs.XmlRoot.ElementName);

   XmlSerializer xSer = new XmlSerializer(typeof(Group), xOver);
   return xSer;
}
}

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

Public Class Sample
    
    Public Function CreateOverrider() As XmlSerializer
        ' Create an XmlSerializer with overriding attributes.
        Dim attrs As New XmlAttributes()
        Dim xOver As New XmlAttributeOverrides()
        
        Dim xRoot As New XmlRootAttribute()
        ' Set a new Namespace and ElementName for the root element.
        xRoot.Namespace = "http://www.cpandl.com"
        xRoot.ElementName = "NewGroup"
        attrs.XmlRoot = xRoot
        
        xOver.Add(GetType(Group), attrs)
        
        ' Get the XmlAttributes object, based on the type.
        Dim tempAttrs As XmlAttributes
        tempAttrs = xOver(GetType(Group))
        
        ' Print the Namespace and ElementName of the root.
        Console.WriteLine(tempAttrs.XmlRoot.Namespace)
        Console.WriteLine(tempAttrs.XmlRoot.ElementName)
        
        Dim xSer As New XmlSerializer(GetType(Group), xOver)
        Return xSer
    End Function
End Class

注解

使用此重载可返回一个 XmlAttributes 对象，该对象包含某个 XmlRootAttribute 或 XmlTypeAttribute 对象的属性。

XmlAttributes如果对象包含重写 XmlArrayAttribute、XmlArrayItemAttribute、XmlElementAttribute或XmlEnumAttribute XmlAttributeAttribute对象的对象，则必须使用指定重写成员和类型的重载。

另请参阅

适用于

Item[Type, String]

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

Source:: XmlAttributeOverrides.cs

获取与指定（基类）类型关联的对象。成员参数指定被重写的基类成员。

public:
 property System::Xml::Serialization::XmlAttributes ^ default[Type ^, System::String ^] { System::Xml::Serialization::XmlAttributes ^ get(Type ^ type, System::String ^ member); };

public System.Xml.Serialization.XmlAttributes this[Type type, string member] { get; }

public System.Xml.Serialization.XmlAttributes? this[Type type, string member] { get; }

member this.Item(Type * string) : System.Xml.Serialization.XmlAttributes

Default Public ReadOnly Property Item(type As Type, member As String) As XmlAttributes

参数

type: Type

与所需属性集合关联的基类 Type 。

member: String

指定要返回的重写成员 XmlAttributes 的名称。

属性值

XmlAttributes

一个 XmlAttributes 表示重写属性的集合。

示例

以下示例创建一个 XmlAttributeOverrides 对象、一个 XmlAttributes和一个 XmlAttributeAttribute 对象。该示例将对象分配给XmlAttributeAttribute XmlAttribute该对象的属性XmlAttributes，并将该XmlAttributes对象添加到XmlAttributeOverrides该对象。最后，该示例通过将序列化类和成员名称传递给Type XmlAttributeOverrides对象来获取XmlAttributes对象。

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

public class Sample
{
public XmlSerializer CreateOverrider()
{
   // Create an XmlSerializer with overriding attributes.
   XmlAttributeOverrides xOver = new XmlAttributeOverrides();

   /* Create an XmlAttributeAttribute object and set the
   AttributeName property. */
   XmlAttributeAttribute xAtt = new XmlAttributeAttribute();
   xAtt.AttributeName = "Code";

   /* Create a new XmlAttributes object and set the
   XmlAttributeAttribute object to the XmlAttribute property. */
   XmlAttributes attrs = new XmlAttributes();
   attrs.XmlAttribute = xAtt;

   /* Add the XmlAttributes to the XmlAttributeOverrides object. The
   name of the overridden attribute must be specified. */
   xOver.Add(typeof(Group), "GroupCode", attrs);

   // Get the XmlAttributes object for the type and member.
   XmlAttributes tempAttrs;
   tempAttrs = xOver[typeof(Group), "GroupCode"];
   Console.WriteLine(tempAttrs.XmlAttribute.AttributeName);

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

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

Public Class Sample
    
    Public Function CreateOverrider() As XmlSerializer
        ' Create an XmlSerializer with overriding attributes.
        Dim xOver As New XmlAttributeOverrides()
        
        ' Create an XmlAttributeAttribute object and set the
        ' AttributeName property. 
        Dim xAtt As New XmlAttributeAttribute()
        xAtt.AttributeName = "Code"
        
        ' Create a new XmlAttributes object and set the
        ' XmlAttributeAttribute object to the XmlAttribute property. 
        Dim attrs As New XmlAttributes()
        attrs.XmlAttribute = xAtt
        
        ' Add the XmlAttributes to the XmlAttributeOverrides object. The
        ' name of the overridden attribute must be specified. 
        xOver.Add(GetType(Group), "GroupCode", attrs)
                
        ' Get the XmlAttributes object for the type and member.
        Dim tempAttrs As XmlAttributes
        tempAttrs = xOver(GetType(Group), "GroupCode")
        Console.WriteLine(tempAttrs.XmlAttribute.AttributeName)
        
        ' Create the XmlSerializer instance and return it.
        Dim xSer As New XmlSerializer(GetType(Group), xOver)
        Return xSer
    End Function
End Class

注解

使用此重载返回一个XmlAttributes对象，该对象包含重写、XmlArrayAttribute、XmlArrayItemAttribute XmlAttributeAttribute或 XmlElementAttribute XmlEnumAttribute。 XmlAttributes如果对象包含或XmlRootAttribute XmlTypeAttribute，则必须使用仅指定重写类型的重载。

另请参阅

适用于

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