Question

HttpWebReponse implements IDisposable interface, but why is there no Dispose method. It only contains Close method. Will be using pattern still available for this class?

Answer 1

HttpWebResponse implements IDisposable interface explicitly. So you can call Dispose only when you cast HttpWebResponse to IDisposable. The Close method of HttpWebResponse calls Dispose internally.

HttpWebResponse response = // assigned from somewhere
IDisposable disposableResponse = response as IDisposable;

disposableResponse.Dispose();

Since HttpWebResponse implements IDisposable you can use it with an using-statement.

HttpWebResponse response = // assigned from somewhere

using(response) {
  // do your work;
}