protected void Page_Load(object sender, EventArgs e)
 {
     if (!IsPostBack)
     {
         if (string.IsNullOrEmpty(Request.QueryString["q"]))
         {
             Repeater1.Dispose();
             Repeater1.DataBind();
         }
         else
         {
             string        Kelime = Request.QueryString["q"].ToString();
             SqlConnection conn   = new SqlConnection(@"Data Source=.\SQLEXPRESS; Initial Catalog=ETicaretDB; Integrated Security=True");
             conn.Open();
             SqlDataAdapter da = new SqlDataAdapter("Select * from urunler where urunadi like '%" + Kelime + "%'", conn);
             DataTable      dt = new DataTable();
             da.Fill(dt);
             Repeater1.DataSource = dt;
             Repeater1.DataBind();
         }
     }
 }