HttpWebRequest.ContentType Propiedad

Definición

Obtiene o establece el valor del encabezado HTTP Content-type.Gets or sets the value of the Content-type HTTP header.

public:
 virtual property System::String ^ ContentType { System::String ^ get(); void set(System::String ^ value); };
public override string ContentType { get; set; }
public override string? ContentType { get; set; }
member this.ContentType : string with get, set
Public Overrides Property ContentType As String

Valor de propiedad

String

Valor del encabezado HTTP Content-type.The value of the Content-type HTTP header. El valor predeterminado es null.The default value is null.

Ejemplos

En el ejemplo de código siguiente se establece la ContentType propiedad.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 = String::Concat( "firstone= ", inputData );
ASCIIEncoding^ encoding = gcnew ASCIIEncoding;
array<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 = "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 = "POST"

Console.WriteLine(ControlChars.Cr + "Please 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.
Dim inputData As String = Console.ReadLine()
Dim postData As String = "firstone" + ChrW(61) + inputData
Dim encoding As New ASCIIEncoding()
Dim byte1 As Byte() = 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
Dim newStream As Stream = myHttpWebRequest.GetRequestStream()
newStream.Write(byte1, 0, byte1.Length)
Console.WriteLine("The value of 'ContentLength' property after sending the data is {0}", myHttpWebRequest.ContentLength)
newStream.Close()

Comentarios

La ContentType propiedad contiene el tipo de medio de la solicitud.The ContentType property contains the media type of the request. Los valores asignados a la ContentType propiedad reemplazan cualquier contenido existente cuando la solicitud envía el Content-type encabezado HTTP.Values assigned to the ContentType property replace any existing contents when the request sends the Content-type HTTP header.

Para borrar el Content-type encabezado HTTP, establezca la ContentType propiedad en null .To clear the Content-type HTTP header, set the ContentType property to null.

Nota

El valor de esta propiedad se almacena en WebHeaderCollection .The value for this property is stored in WebHeaderCollection . Si WebHeaderCollection se establece, se pierde el valor de la propiedad.If WebHeaderCollection is set, the property value is lost.

Se aplica a