WebRequest.ContentLength Property (System.Net)

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Microsoft Visual Studio 2010/.NET Framework 4

Other versions are also available for the following:

.NET Framework Class Library

WebRequest..::.ContentLength Property

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

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

Syntax

Visual Basic

Public Overridable Property ContentLength As Long

public virtual long ContentLength { get; set; }

Visual C++

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 of request data being sent.

Exceptions

Exception	Condition
NotImplementedException	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 number of bytes of data sent to the Internet resource by the WebRequest instance.

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

Examples

The following example sets the ContentLength property to the amount of bytes in the outgoing byte buffer.

Visual Basic



            ' Set the 'ContentType' property of the WebRequest.
            myWebRequest.ContentType = "application/x-www-form-urlencoded"

            ' Set the 'ContentLength' property of the WebRequest.
            myWebRequest.ContentLength = byteArray.Length
            Dim newStream As Stream = myWebRequest.GetRequestStream()
            newStream.Write(byteArray, 0, byteArray.Length)

            ' Close the Stream object.
            newStream.Close()

            ' Assign the response object of 'WebRequest' to a 'WebResponse' variable.
            Dim myWebResponse As WebResponse = myWebRequest.GetResponse()


            // Set the 'ContentType' property of the WebRequest.
            myWebRequest.ContentType="application/x-www-form-urlencoded";

            // Set the 'ContentLength' property of the WebRequest.
            myWebRequest.ContentLength=byteArray.Length;
            Stream newStream=myWebRequest.GetRequestStream();
            newStream.Write(byteArray,0,byteArray.Length);

            // Close the Stream object.
            newStream.Close();

            // Assign the response object of 'WebRequest' to a 'WebResponse' variable.
            WebResponse myWebResponse=myWebRequest.GetResponse();

Visual C++

// Set the 'ContentType' property of the WebRequest.
myWebRequest->ContentType = "application/x-www-form-urlencoded";

// Set the 'ContentLength' property of the WebRequest.
myWebRequest->ContentLength = byteArray->Length;
Stream^ newStream = myWebRequest->GetRequestStream();
newStream->Write( byteArray, 0, byteArray->Length );

// Close the Stream object.
newStream->Close();

// Assign the response object of 'WebRequest' to a 'WebResponse' variable.
WebResponse^ myWebResponse = myWebRequest->GetResponse();

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

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

WebRequest Class

System.Net Namespace

HttpWebRequest..::.ContentLength