WebResponse.ContentLength Property

Reference

Definition

Namespace:: System.Net

Assemblies:: System.dll, System.Net.Requests.dll

Assemblies:: netstandard.dll, System.Net.Requests.dll

Assembly:: System.Net.Requests.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Source:: WebResponse.cs

Source:: WebResponse.cs

Source:: WebResponse.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

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

public:
 abstract property long ContentLength { long get(); };

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

public abstract long ContentLength { get; }

public virtual long ContentLength { get; set; }

member this.ContentLength : int64

member this.ContentLength : int64 with get, set

Public MustOverride ReadOnly Property ContentLength As Long

Public Overridable Property ContentLength As Long

Property Value

Int64

The number of bytes returned from the Internet resource.

Exceptions

NotSupportedException

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

Examples

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

// 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();


' 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()

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.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1
UWP	10.0

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