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HttpWebResponse.ContentLength Property

Gets the length of the content returned by the request.

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

public override long ContentLength { get; }

Property Value

Type: System.Int64
The number of bytes returned by the request. Content length does not include header information.

ExceptionCondition
ObjectDisposedException

The current instance has been disposed.

The ContentLength property contains the value of the Content-Length header returned with the response. If the Content-Length header is not set in the response, ContentLength is set to the value -1.

The following example displays the value of this property.

using System;
using System.Net;
using System.Text;
using System.IO;


    public class Test
    {
        // Specify the URL to receive the request. 
        public static void Main (string[] args)
        {
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]);

            // Set some reasonable limits on resources used by this request
            request.MaximumAutomaticRedirections = 4;
            request.MaximumResponseHeadersLength = 4;
            // Set credentials to use for this request.
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse ();

            Console.WriteLine ("Content length is {0}", response.ContentLength);
            Console.WriteLine ("Content type is {0}", response.ContentType);

            // Get the stream associated with the response.
            Stream receiveStream = response.GetResponseStream ();

            // Pipes the stream to a higher level stream reader with the required encoding format. 
            StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8);

            Console.WriteLine ("Response stream received.");
            Console.WriteLine (readStream.ReadToEnd ());
            response.Close ();
            readStream.Close ();
        }
    }

/*
The output from this example will vary depending on the value passed into Main 
but will be similar to the following:

Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>

*/
#using <mscorlib.dll>
#using <System.dll>
using namespace System;
using namespace System::Net;
using namespace System::Text;
using namespace System::IO;

// Specify the URL to receive the request.
int main ()
{
    String* args[] = Environment::GetCommandLineArgs();

    HttpWebRequest* request = dynamic_cast<HttpWebRequest*>(WebRequest::Create (args[1]));

    // Set some reasonable limits on resources used by this request
    request->MaximumAutomaticRedirections = 4;
    request->MaximumResponseHeadersLength = 4;
    // Set credentials to use for this request.
    request->Credentials = CredentialCache::DefaultCredentials;
    HttpWebResponse* response = dynamic_cast<HttpWebResponse*>(request->GetResponse ());

    Console::WriteLine (S"Content length is {0}", __box(response->ContentLength));
    Console::WriteLine (S"Content type is {0}", response->ContentType);

    // Get the stream associated with the response.
    Stream* receiveStream = response->GetResponseStream ();

    // Pipes the stream to a higher level stream reader with the required encoding format. 
    StreamReader* readStream = new StreamReader (receiveStream, Encoding::UTF8);

    Console::WriteLine (S"Response stream received.");
    Console::WriteLine (readStream->ReadToEnd ());
    response->Close ();
    readStream->Close ();
}

/*
The output from this example will vary depending on the value passed into Main 
but will be similar to the following:

Content length is 1542
Content type is text/html; charset=utf-8
Response stream received.
<html>
...
</html>

*/

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

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