July 28, 2014
When overridden in a derived class, gets a collection of header name-value pairs associated with this request.
Assembly: System.Net (in System.Net.dll)
Any attempt is made to get or set the property, when the property is not overridden in a descendant class.
The property contains the name-value header pairs returned in the response.
The WebResponse class is an abstract class. The actual behavior of WebResponse instances at run time is determined by the descendant class. For more information about default values and exceptions, please see the documentation for the HttpWebResponse descendant class.
The property is supported by the client HTTP stack, not the browser HTTP stack. The NotImplementedException is thrown if an application does not use the client HTTP stack for the HTTP response and tries to get the property in the descendant class. The SupportsHeaders property can be used to determine if the property is supported without the need to handle an exception.
By default, the browser HTTP stack is used by the HttpWebRequest and the HttpWebResponse class. An application can use the client HTTP stack by calling the RegisterPrefix method with the creator parameter set to the value returned by the ClientHttp property.