When overridden in a descendant class, gets or sets the collection of header name/value pairs associated with the request.
Assembly: System (in System.dll)
Any attempt is made to get or set the property, when the property is not overridden in a descendant class.
The WebHeaderCollection instance containing the header information to send to the Internet resource.property contains a
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.
Available since 8
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1