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HttpListenerRequest.ContentType Property

Gets the MIME type of the body data included in the request.

Namespace:  System.Net
Assembly:  System (in System.dll)

member ContentType : string with get

Property Value

Type: System.String
A String that contains the text of the request's Content-Type header.

If a client includes body data in a request, it declares the Multipurpose Internet Mail Extensions (MIME) type of the body data in the Content-Type header. For example, the default MIME type of data returned from a Web form using the POST method is application/x-www-form-urlencoded.

For a complete list of request headers, see the HttpRequestHeader enumeration and RFC 2616, available at http://www.rfc-editor.org.

The ContentType is null when there is no Content-Type header in the request.

The following code example demonstrates how to use this property.

public static void ShowRequestData (HttpListenerRequest request)
{
    if (!request.HasEntityBody)
    {
        Console.WriteLine("No client data was sent with the request.");
        return;
    }
    System.IO.Stream body = request.InputStream;
    System.Text.Encoding encoding = request.ContentEncoding;
    System.IO.StreamReader reader = new System.IO.StreamReader(body, encoding);
    if (request.ContentType != null)
    {
        Console.WriteLine("Client data content type {0}", request.ContentType);
    }
    Console.WriteLine("Client data content length {0}", request.ContentLength64);

    Console.WriteLine("Start of client data:");
    // Convert the data to a string and display it on the console. 
    string s = reader.ReadToEnd();
    Console.WriteLine(s);
    Console.WriteLine("End of client data:");
    body.Close();
    reader.Close();
    // If you are finished with the request, it should be closed also.
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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