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HttpWebRequest.ContentType Property

Gets or sets the value of the Content-type HTTP header.

Namespace:  System.Net
Assembly:  System (in System.dll)
public override string ContentType { get; set; }

Property Value

Type: System.String
The value of the Content-type HTTP header. The default value is null.

The ContentType property contains the media type of the request. Values assigned to the ContentType property replace any existing contents when the request sends the Content-type HTTP header.

To clear the Content-type HTTP header, set the ContentType property to null.

NoteNote

The value for this property is stored in WebHeaderCollection . If WebHeaderCollection is set, the property value is lost.

The following code example sets the ContentType property.

            // Set the 'Method' property of the 'Webrequest' to 'POST'.
            myHttpWebRequest.Method = "POST";
            Console.WriteLine ("\nPlease enter the data to be posted to the (http://www.contoso.com/codesnippets/next.asp) Uri :");

            // Create a new string object to POST data to the Url. 
            string inputData = Console.ReadLine ();


            string postData = "firstone=" + inputData;
            ASCIIEncoding encoding = new ASCIIEncoding ();
            byte[] byte1 = encoding.GetBytes (postData);

            // Set the content type of the data being posted.
            myHttpWebRequest.ContentType = "application/x-www-form-urlencoded";

            // Set the content length of the string being posted.
            myHttpWebRequest.ContentLength = byte1.Length;

            Stream newStream = myHttpWebRequest.GetRequestStream ();

            newStream.Write (byte1, 0, byte1.Length);
            Console.WriteLine ("The value of 'ContentLength' property after sending the data is {0}", myHttpWebRequest.ContentLength);

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

.NET Framework

Supported in: 4.5.1, 4.5, 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

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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