Unable to set the proxy object

Question

hi,

 There is one soap based normal webservice, in client system i just added as a web reference and through proxy i am invoking the web methods like

  MyWebservice objWebSer= new MyWebservice();

  WebProxy myproxy = new WebProxy(strProxyUrl, iPort);

  objWebSer.proxy = myproxy;

  objWebSer.GetDetails();  --- This is the way i am getting the data.

Now in client system I have added as wcf reference with the same web service. 

  MyWebservice objWebSerClient= new MyWebservice();

here i am unable set the proxy details to my wcf service object.

Can any one please help me, thanks in advance.