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

namespace DGVTest
{
    public class PagingGridView : GridView
    {
        public PagingGridView()
        {

        }

        private IQueryable querableData;

        public override Object DataSource
        {
            get
            {
                return base.DataSource;
            }
            set
            {
                if (value is IQueryable)
                {
                    querableData = (IQueryable)value;
                    ObjectDataSource ods = new ObjectDataSource();               

                    ods.ID = "ods_" + this.ID;

                    ods.EnablePaging = this.AllowPaging;
                    // This must be the full name of the class
                    ods.TypeName = "DGVTest.IQueryableAdapter";
                    ods.SelectMethod = "GetData";
                    ods.SelectCountMethod = "GetCount";
                    ods.StartRowIndexParameterName = "startRowIndex";
                    ods.MaximumRowsParameterName = "pageSize";

                    ods.EnableViewState = false;

                    ods.ObjectCreating += (o,e)=> e.ObjectInstance =
		new IQueryableAdapter(querableData);

                    base.DataSource = ods;

                    if (AllowPaging)
                    {
                        PageIndexChanging += (o, gpe) =>
                        {
                            PageIndex = gpe.NewPageIndex;
                            DataBind();
                        };
                    }
                    if (AllowSorting)
                    {
                        //---if want to implement sorting...
                    }
                }
                else
                {
                    base.DataSource = value;
                }
            }
        }
    }

    public class IQueryableAdapter
    {
        private IQueryable _data;
        private int _totalCount;

        public IQueryableAdapter(IQueryable data)
        {

            _data = data;
            _totalCount = (int)GetExtMethod("Count", _data ).Invoke(null, new object[] { _data });
        }

        public object GetData()
        {
            return _data;
        }

        public int GetCount()
        {
            return _totalCount;
        }

        public object GetData(int startRowIndex, int pageSize)
        {
            var enumResult = GetExtMethod("Skip", _data).Invoke(null, new object[] { _data, startRowIndex });
            return GetExtMethod("Take", _data ).Invoke(null, new object[] { enumResult, pageSize });
        }

        private MethodInfo GetExtMethod(string methodName,object obj )
        {
            var genType = obj.GetType().GetGenericArguments()[0];
            return typeof(System.Linq.Queryable)
                .GetMethods(BindingFlags.Public | BindingFlags.Static)
                .First(m => m.Name == methodName)
                .MakeGenericMethod(genType);
        }
    }
}

<%@ Register Assembly="DGVTest" Namespace="DGVTest" TagPrefix="juyee" %>

 <juyee:PagingGridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"></juyee:PagingGridView>

  <system.web>
    <pages>
      <controls>
        <add tagPrefix="juyee" namespace="DGVTest"
              assembly="DGVTest" />
      </controls>
    </pages>
  </system.web>

            var ds= from t in new testdbEntities().People
                    orderby t.Name
                    select t; 

            GridView1.DataSource =ds;
            GridView1.DataBind();