System 2.0.0.0 4.0.0.0 System.ComponentModel.AsyncCompletedEventArgs Instances of this class are passed to methods.

Provides data for the event.

Property 2.0.0.0 4.0.0.0 System.IO.Stream To be added. You should check the and properties before using the stream returned by this property. If the property's value is an object or the property's value is true, the asynchronous operation did not complete correctly and the property's value will not be valid.

Gets a writable stream that is used to send data to a server.