release resource for WebClient class

Question

Hello everyone,

I find there is no resource release method for WebClient class, e.g. a method called "Close".

My usage scenario is,

1. Creating a new instance of WebClient;
2. Post byte[] data using UploadData method, and retrieve return data also using byte[].

In my scenario, are there any need to call some methods to release the resource (I suepect there is request stream handle and response stream handle to release)?

thanks in advance,
George