ClickServer Event

hi , how are you guys ? I hope that you all fine ..

here is my question .. I've just went  from visual studio desktop to visual web application .. and now I am trying to make an events to html or .net tools from c# and I started with click event

here

Button1.ServerClick += new system.EventHandler(this.clickfun);
 
public void clickfun  (object sender, EventArgs e)

        {

  response.redirect("sss");
 
}

done

in visual studio application .. the same this code works very well  except 1 change is (serverclick) and

there is only ((click)) and I realy not sure if I know the realy reason ..  also the (sss) message doesn,t work at all and all that (clickfun) also doesn,t work

I hope you guys can help me in this problem

thank you