How to implement knowledge search page using visual studio 2010 quering from database (C#)

Just a try.

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Objects.DataClasses;
using System.Data.Objects.SqlClient;

namespace WebApplication5
{
    public partial class _Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
        
              
           
            }

        protected void Button1_Click(object sender, EventArgs e)
        {
            var searchText = TextBox1.Text;

            using (DBResearchEntities query = new DBResearchEntities())
            {
                //var Articlequery = from t in query.articles

                 var Articlequery = from t in query.articles      
                 select t;
                   //                where t.Title == searchText
                    //               select t;
                 if (searchText != "") { Articlequery = Articlequery.Where(t => t.Title.Contains(searchText)); }

                 GridView1.DataSource = Articlequery;
                 GridView1.DataBind();
                 GridView1.AllowPaging = true;
            }
        }
                protected void gdview_RowDataBound(object sender, GridViewRowEventArgs e)
{
HyperLinkField hyp = (HyperLinkField)GridView1.Columns[0];
string[] items = new string[2];
items[0] = "Id";
items[1] = "Title";
hyp.DataNavigateUrlFields = items;
hyp.DataNavigateUrlFormatString ="~/About.aspx?Id={0}";
}

                              
               
        }
        }