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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 ();
// Set the 'Method' property of the 'Webrequest' to 'POST'.
myHttpWebRequest->Method=S"POST";
Console::WriteLine(S"\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 = String::Concat(S"firstone= ", inputData);
ASCIIEncoding* encoding = new ASCIIEncoding();
Byte byte1[] = encoding->GetBytes(postData);
// Set the content type of the data being posted.
myHttpWebRequest->ContentType = S"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(S"The value of 'ContentLength' property after sending the data is {0}",
   __box(myHttpWebRequest->ContentLength));
// Close the Stream Object*.
newStream->Close();

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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