HttpListenerRequest.UserAgent HttpListenerRequest.UserAgent HttpListenerRequest.UserAgent HttpListenerRequest.UserAgent Property

Définition

Obtient l’agent utilisateur présenté par le client.Gets the user agent presented by the client.

public:
 property System::String ^ UserAgent { System::String ^ get(); };
public string UserAgent { get; }
member this.UserAgent : string
Public ReadOnly Property UserAgent As String

Valeur de propriété

Un String objet qui contient le texte de la demande User-Agent en-tête.A String object that contains the text of the request's User-Agent header.

Exemples

L’exemple de code suivant illustre l’utilisation de cette propriété.The following code example demonstrates using this property.

public static void ShowRequestProperties1 (HttpListenerRequest request)
{
    // Display the MIME types that can be used in the response.
    string[] types = request.AcceptTypes;
    if (types != null)
    {
        Console.WriteLine("Acceptable MIME types:");
        foreach (string s in types)
        {
            Console.WriteLine(s);
        }
    }
    // Display the language preferences for the response.
    types = request.UserLanguages;
    if (types != null)
    {
        Console.WriteLine("Acceptable natural languages:");
        foreach (string l in types)
        {
            Console.WriteLine(l);
        }
    }
    
    // Display the URL used by the client.
    Console.WriteLine("URL: {0}", request.Url.OriginalString);
    Console.WriteLine("Raw URL: {0}", request.RawUrl);
    Console.WriteLine("Query: {0}", request.QueryString);

    // Display the referring URI.
    Console.WriteLine("Referred by: {0}", request.UrlReferrer);

    //Display the HTTP method.
    Console.WriteLine("HTTP Method: {0}", request.HttpMethod);
    //Display the host information specified by the client;
    Console.WriteLine("Host name: {0}", request.UserHostName);
    Console.WriteLine("Host address: {0}", request.UserHostAddress);
    Console.WriteLine("User agent: {0}", request.UserAgent);
}
Public Shared Sub ShowRequestProperties1(ByVal request As HttpListenerRequest)
    ' Display the MIME types that can be used in the response.
    Dim types As String() = request.AcceptTypes

    If types IsNot Nothing Then
        Console.WriteLine("Acceptable MIME types:")

        For Each s As String In types
            Console.WriteLine(s)
        Next
    End If

    ' Display the language preferences for the response.
    types = request.UserLanguages

    If types IsNot Nothing Then
        Console.WriteLine("Acceptable natural languages:")

        For Each l As String In types
            Console.WriteLine(l)
        Next
    End If

    ' Display the URL used by the client.
    Console.WriteLine("URL: {0}", request.Url.OriginalString)
    Console.WriteLine("Raw URL: {0}", request.RawUrl)
    Console.WriteLine("Query: {0}", request.QueryString)

    ' Display the referring URI.
    Console.WriteLine("Referred by: {0}", request.UrlReferrer)

    ' Display the HTTP method.
    Console.WriteLine("HTTP Method: {0}", request.HttpMethod)

    ' Display the host information specified by the client.
    Console.WriteLine("Host name: {0}", request.UserHostName)
    Console.WriteLine("Host address: {0}", request.UserHostAddress)
    Console.WriteLine("User agent: {0}", request.UserAgent)
End Sub

Remarques

Le User-Agent en-tête contient généralement un texte qui identifie le nom et numéro de version du logiciel utilisé pour générer la demande.The User-Agent header typically contains text that identifies the name and version number of the software used to generate the request.

Pour obtenir une liste complète des en-têtes de demande, consultez le HttpRequestHeader énumération.For a complete list of request headers, see the HttpRequestHeader enumeration.

Le UserAgent a la valeur null lorsqu’il existe aucune User-Agent en-tête dans la demande.The UserAgent is null when there is no User-Agent header in the request.

S’applique à

Voir aussi