index.cshtml

@using TXTextControl.Web.MVC

@{
   Random rand = new Random();
   string serverId = rand.Next(0, 2).ToString();

   // build WebSocketURL including a server id in query string
   var sProtocol = (Context.Request.IsHttps) ? "wss://" : "ws://";
   var sWebSocketURL = sProtocol + Context.Request.Host
     + "/TXWebSocket?server=" + serverId;
}

@Html.TXTextControl().TextControl(settings => {
    settings.WebSocketURL = sWebSocketURL;
}).Render()