RoadFlow2.1/WebForm/Platform/UserApp/Default.aspx...

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebForm.Platform.UserApp
{
    public partial class Default : Common.BasePage
    {
        protected string query = string.Empty;
        protected void Page_Load(object sender, EventArgs e)
        {
            query = Request.Url.Query; 
        }
    }
}