WebResponse.Headers WebResponse.Headers WebResponse.Headers WebResponse.Headers Property

Definición

Cuando se realizan omisiones en una clase derivada, obtiene una colección de pares de nombre-valor de encabezado asociados a esta solicitud.When overridden in a derived class, gets a collection of header name-value pairs associated with this request.

public:
 virtual property System::Net::WebHeaderCollection ^ Headers { System::Net::WebHeaderCollection ^ get(); };
public virtual System.Net.WebHeaderCollection Headers { get; }
member this.Headers : System.Net.WebHeaderCollection
Public Overridable ReadOnly Property Headers As WebHeaderCollection

Valor de propiedad

Instancia de la clase WebHeaderCollection que contiene los valores de encabezado asociados a esta respuesta.An instance of the WebHeaderCollection class that contains header values associated with this response.

Excepciones

Se intenta por todos los medios obtener o establecer la propiedad, cuando la propiedad no se reemplaza en una clase descendiente.Any attempt is made to get or set the property, when the property is not overridden in a descendant class.

Ejemplos

El ejemplo siguiente muestra todos los pares de nombre-valor de encabezado devueltos en la WebResponse.The following example displays all of the header name-value pairs returned in the WebResponse.

// Create a 'WebRequest' object with the specified url.
WebRequest^ myWebRequest = WebRequest::Create( "http://www.contoso.com" );

// Send the 'WebRequest' and wait for response.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

// Display all the Headers present in the response received from the URl.
Console::WriteLine( "\nThe following headers were received in the response" );

// Display each header and its key , associated with the response object.
for ( int i = 0; i < myWebResponse->Headers->Count; ++i )
   Console::WriteLine( "\nHeader Name: {0}, Header value : {1}", myWebResponse->Headers->Keys[ i ], myWebResponse->Headers[ i ] );

// Release resources of response object.
myWebResponse->Close();


       // Create a 'WebRequest' object with the specified url. 	
      WebRequest myWebRequest = WebRequest.Create("http://www.contoso.com"); 

      // Send the 'WebRequest' and wait for response.
WebResponse myWebResponse = myWebRequest.GetResponse(); 

      // Display all the Headers present in the response received from the URl.
      Console.WriteLine("\nThe following headers were received in the response");

// Display each header and it's key , associated with the response object.
      for(int i=0; i < myWebResponse.Headers.Count; ++i)  
   Console.WriteLine("\nHeader Name:{0}, Header value :{1}",myWebResponse.Headers.Keys[i],myWebResponse.Headers[i]); 

      // Release resources of response object.
      myWebResponse.Close(); 
      

          ' Create a 'WebRequest' object with the specified url 	
          Dim myWebRequest As WebRequest = WebRequest.Create("www.contoso.com")
          
          ' Send the 'WebRequest' and wait for response.
          Dim myWebResponse As WebResponse = myWebRequest.GetResponse()
          
          ' Display all the Headers present in the response received from the URl.
          Console.WriteLine(ControlChars.Cr + "The following headers were received in the response")
          
          ' Headers property is a 'WebHeaderCollection'. Use it's properties to traverse the collection and display each header
          Dim i As Integer
          
          While i < myWebResponse.Headers.Count
              Console.WriteLine(ControlChars.Cr + "Header Name:{0}, Header value :{1}", myWebResponse.Headers.Keys(i), myWebResponse.Headers(i))
i = i + 1
          End While

          ' Release resources of response object.
          myWebResponse.Close()
          

Comentarios

El Headers propiedad contiene los pares de nombre-valor encabezado devueltos en la respuesta.The Headers property contains the name-value header pairs returned in the response.

Nota

El WebResponse clase es un abstract clase.The WebResponse class is an abstract class. El comportamiento real de WebResponse instancias en tiempo de ejecución viene determinada por la clase descendiente, devuelve WebRequest.GetResponse.The actual behavior of WebResponse instances at run time is determined by the descendant class returned by WebRequest.GetResponse. Para obtener más información acerca de los valores predeterminados y las excepciones, consulte la documentación de las clases descendientes, como HttpWebResponse y FileWebResponse.For more information about default values and exceptions, please see the documentation for the descendant classes, such as HttpWebResponse and FileWebResponse.

Se aplica a

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