Having a problem to display the report on the reopt server

[preeti13]

Hi friend need you help again.i am tring to display the reprot from the report server but getting the error. Error is this :
A data source instance has not been supplied for the data source 'Adventurework_ vProductAndDesc ription'. and my code is like this

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Search.Searching;
namespace Search
{
    public partial class RenderReport : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
              if (!Page.IsPostBack)
            {
                
                ReportViewer1.ServerReport.ReportServerUrl = new Uri(Global.ReportServer.ToString());
                ReportViewer1.ServerReport.ReportPath = Global.ReportPath + Request["/path"];
                
                
            }
        }
    }
}

Please help me out with this probelm becuase i tried so many days to sloved it but i can't i know i am missing some kind of code what don't know what it is please help me