Hi,

You can simply use below code after binding Data

Thread.Sleep(5000);

thanks for replay

i used your suggestion bt it laoding 10 second than show gridview

but i want to bind gridview without dealy and show gridview after 5 second

  protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {

            SqlConnection con = new SqlConnection(cs.getconnection());
            SqlCommand cmd = new SqlCommand("Select * from tbl_product", con);
            cmd.CommandType = CommandType.Text;

            SqlDataAdapter da = new SqlDataAdapter(cmd);
            DataTable dt = new DataTable();
            da.Fill(dt);
            GridView1.DataSource = dt;
            GridView1.DataBind();
            con.Close();
            Thread.Sleep(10000);
            GridView1.Visible = true;
           

        }
    }

Please refer below link

show defalut small image in datalist before fully bind image in datalist from database

and dont bind on page load just call bindgrid async