WebRequest.GetRequestStream Method

Definition

Namespace:

System.Net

Assemblies:

netstandard.dll, System.Net.Requests.dll

Source:

WebRequest.cs

When overridden in a descendant class, returns a Stream for writing data to the Internet resource.

C#

public virtual System.IO.Stream GetRequestStream();

Returns

Stream

A Stream for writing data to the Internet resource.

Exceptions

NotImplementedException

Any attempt is made to access the method, when the method is not overridden in a descendant class.

Examples

The following example uses the GetRequestStream method to obtain a stream and then writes data that stream.

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();

Remarks

Caution

WebRequest, HttpWebRequest, ServicePoint, and WebClient are obsolete, and you shouldn't use them for new development. Use HttpClient instead.

The GetRequestStream method initiates a request to send data to the Internet resource and returns a Stream instance for sending data to the Internet resource.

The GetRequestStream method provides synchronous access to the Stream. For asynchronous access, use the BeginGetRequestStream and EndGetRequestStream methods.

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.

Applies to

See also

• BeginGetRequestStream(AsyncCallback, Object)
• Using Streams on the Network