WebHeaderCollection.AllKeys Propiedad

Definición

Espacio de nombres:

System.Net

Ensamblado:

System.Net.WebHeaderCollection.dll

Source:

WebHeaderCollection.cs

Obtiene todos los nombres de encabezado (claves) de la colección.

public:
 virtual property cli::array <System::String ^> ^ AllKeys { cli::array <System::String ^> ^ get(); };

public override string[] AllKeys { get; }

member this.AllKeys : string[]

Public Overrides ReadOnly Property AllKeys As String()

Valor de propiedad

String[]

Matriz de tipo String que contiene todos los nombres de encabezado de una solicitud web.

Ejemplos

En el ejemplo de código siguiente se usa la AllKeys propiedad para obtener los nombres de encabezado .WebHeaderCollection

if (args.Length == 0)
{
    Console.WriteLine("must specify a URL!");
    return;
}
string server = args[0];

// Create the web request 
HttpWebRequest myHttpWebRequest = 
    (HttpWebRequest) WebRequest.Create(server);
myHttpWebRequest.Timeout = 1000;
// Get the associated response for the above request.
HttpWebResponse myHttpWebResponse = 
    (HttpWebResponse) myHttpWebRequest.GetResponse();

// Get the headers associated with the response.
WebHeaderCollection myWebHeaderCollection = 
    myHttpWebResponse.Headers;

for(int i = 0; i < myWebHeaderCollection.Count; i++)
{
    String header = myWebHeaderCollection.GetKey(i);
    String[] values = 
        myWebHeaderCollection.GetValues(header);
    if(values.Length > 0) 
    {
        Console.WriteLine("The values of {0} header are : "
                         , header);
        for(int j = 0; j < values.Length; j++) 
            Console.WriteLine("\t{0}", values[j]);
    }
    else
        Console.WriteLine("There is no value associated" +
            "with the header");
}
Console.WriteLine("");

// Get the headers again, using new properties (Keys, 
// AllKeys, Clear) and methods (Get and GetKey)

string[] headers = myWebHeaderCollection.AllKeys;

// enumerate through the header collection.
foreach (string s in headers)
{
    Console.WriteLine("Header {0}, value {1}",
        s,
        myWebHeaderCollection.Get(s) );
}

Console.WriteLine("");

// show the use of Get(Int32) and GetValue(Int32)
if (myWebHeaderCollection.Count > 0)
{
    // get the name and value of the first header
    int index=0;
    Console.WriteLine("Header {0}: name {1}, value {2}",
        index, 
        myWebHeaderCollection.GetKey(index),
        myWebHeaderCollection.Get(index));
}

myWebHeaderCollection.Clear();

myHttpWebResponse.Close();