SoapExtensionAttribute 类

定义

public ref class SoapExtensionAttribute abstract : Attribute

public abstract class SoapExtensionAttribute : Attribute

type SoapExtensionAttribute = class
    inherit Attribute

Public MustInherit Class SoapExtensionAttribute
Inherits Attribute

继承

Object

Attribute

SoapExtensionAttribute

示例

以下 TraceExtensionAttribute 类派生自 SoapExtensionAttribute 支持将属性应用于 XML Web 服务方法或 XML Web 服务客户端代理类中的方法。 应用于任一方法时， TraceExtension SOAP 扩展将运行。

// Create a SoapExtensionAttribute for a SOAP extension that can be
// applied to an XML Web service method.

[AttributeUsage(AttributeTargets::Method)]
public ref class TraceExtensionAttribute: public SoapExtensionAttribute
{
private:
   String^ myFilename;
   int myPriority;

public:

   // Set the name of the log file were SOAP messages will be stored.
   TraceExtensionAttribute()
      : SoapExtensionAttribute()
   {
      myFilename = "C:\\logClient.txt";
   }

   property Type^ ExtensionType 
   {
      // Return the type of 'TraceExtension' class.
      virtual Type^ get() override
      {
         return TraceExtension::typeid;
      }
   }

   property int Priority 
   {
      // User can set priority of the 'SoapExtension'.
      virtual int get() override
      {
         return myPriority;
      }

      virtual void set( int value ) override
      {
         myPriority = value;
      }
   }

   property String^ Filename 
   {
      String^ get()
      {
         return myFilename;
      }

      void set( String^ value )
      {
         myFilename = value;
      }
   }
};

// Create a SoapExtensionAttribute for a SOAP extension that can be
// applied to an XML Web service method.
[AttributeUsage(AttributeTargets.Method)]
public class TraceExtensionAttribute : SoapExtensionAttribute {

    private string myFilename;
    private int myPriority;

    // Set the name of the log file were SOAP messages will be stored.
    public TraceExtensionAttribute() : base()
    {
        myFilename = "C:\\logClient.txt";
    }

    // Return the type of 'TraceExtension' class.
    public override Type ExtensionType
    {
        get
        {
            return typeof(TraceExtension);
        }
    }

    // User can set priority of the 'SoapExtension'.
    public override int Priority
    {
        get
        {
            return myPriority;
        }
        set
        {
            myPriority = value;
        }
    }

    public string Filename
    {
        get
        {
            return myFilename;
        }
        set
        {
            myFilename = value;
        }
    }
}

' Create a SoapExtensionAttribute for a SOAP extension that can be
' applied to an XML Web service method.
<AttributeUsage(AttributeTargets.Method)> _
Public Class TraceExtensionAttribute
    Inherits SoapExtensionAttribute
    
    Private m_filename As String = "c:\log.txt"
    Private m_priority As Integer

   ' Return the type of 'TraceExtension' class.
    Public Overrides ReadOnly Property ExtensionType() As Type
        Get
            Return GetType(TraceExtension)
        End Get
    End Property

   ' User can set priority of the 'TraceExtension'.
    Public Overrides Property Priority() As Integer
        Get
            Return m_priority
        End Get
        Set(ByVal Value As Integer)
            m_priority = value
        End Set
    End Property

    Public Property Filename() As String
        Get
            Return m_filename
        End Get
        Set(ByVal Value As String)
            m_filename = value
        End Set
    End Property
End Class

注解

可以使用 ASP.NET 创建的 XML Web 服务方法配置为使用 SOAP 扩展运行，方法是将属性应用于 XML Web 服务方法。 将自定义扩展属性添加到客户端代理类上的 XML Web 服务方法或方法时，ASP.NET 适当时调用关联的扩展。 扩展属性是派生自 SoapExtensionAttribute的自定义属性类。 派生属性必须重写 ExtensionType 该属性才能返回与该属性关联的扩展类型。

构造函数

属性

方法

显式接口实现

适用于

另请参阅

• SoapExtension
• SoapMessage