WebResponse.ContentLength Property (System.Net)

.NET Framework Class Library

WebResponse..::.ContentLength Property

When overridden in a descendant class, gets or sets the content length of data being received.

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

Public Overridable Property ContentLength As Long

public virtual long ContentLength { get; set; }

public:
virtual property long long ContentLength {
	long long get ();
	void set (long long value);
}

abstract ContentLength : int64 with get, set
override ContentLength : int64 with get, set

Property Value

Type: System..::.Int64
The number of bytes returned from the Internet resource.

Exceptions

Exception	Condition
NotSupportedException	Any attempt is made to get or set the property, when the property is not overridden in a descendant class.

Remarks

The ContentLength property contains the length, in bytes, of the response from the Internet resource. For request methods that contain header information, the ContentLength does not include the length of the header information.

Note
The WebResponse class is an abstract class. The actual behavior of WebResponse instances at run time is determined by the descendant class returned by WebRequest..::.GetResponse. For more information about default values and exceptions, please see the documentation for the descendant classes, such as HttpWebResponse and FileWebResponse.

Examples

The following example uses the ContentLength property to obtain the Length of the resource returned.



            ' Create a 'WebRequest' 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()

            ' The ContentLength and ContentType received as headers in the response object are also exposed as properties.
			   ' These provide information about the length and type of the entity body in the response.
            Console.WriteLine(ControlChars.Cr + "Content length :{0}, Content Type : {1}", myWebResponse.ContentLength, myWebResponse.ContentType)
            myWebResponse.Close()



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

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

			// Display the content length and content type received as headers in the response object.
			Console.WriteLine("\nContent length :{0}, Content Type : {1}", 
			                             myWebResponse.ContentLength, 
			                             myWebResponse.ContentType);  
			
			// Release resources of response object.
			myWebResponse.Close();


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

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

// Display the content length and content type received as headers in the response object.
Console::WriteLine( "\nContent length : {0}, Content Type : {1}", myWebResponse->ContentLength, myWebResponse->ContentType );

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

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

Reference

WebResponse Class

System.Net Namespace

HttpWebResponse..::.ContentLength

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