This method is called by the public Dispose method and the Finalize method. By default, this method specifies the disposing parameter as true. Finalize specifies the disposing parameter as false.
When the disposing parameter is true, this method releases all resources held by any managed objects that this TextReader references. This method invokes the Dispose method of each referenced object.
Notes to Inheritors
Dispose can be called multiple times by other objects. When overriding this method, be careful not to reference objects that have been previously disposed of in an earlier call to Dispose. For more information about how to implement this method, see Implementing a Dispose Method.