实在不好意思，之前做的例子太粗糙了，现在重新给大家一个实例。

首先在你的Web页面上拖入6个TextBox控件（用来写和读Cookie显示的）

然后参照一下代码就很容易了

      private void saveCookie()
      {
          HttpCookie cookie = new HttpCookie("snap_options");
          cookie.Values.Add("snap_options_collapsed", TextBox1.Text.ToString());
          cookie.Values.Add("snap_options_dockingContainer", TextBox2.Text.ToString());
          cookie.Values.Add("snap_options_dockingIndex", TextBox3.Text.ToString());
          cookie.Values.Add("snap_tools_collapsed", TextBox4.Text.ToString());
          cookie.Values.Add("snap_tools_dockingContainer", TextBox5.Text.ToString());
          cookie.Values.Add("snap_tools_dockingIndex", TextBox6.Text.ToString());
          cookie.Expires = DateTime.Now.AddDays(1);//这里是Cookie过期时间，是3楼的朋友想做的事，现在设置加一天，换个方法就能算出其他过期时间
          //cookie.Domain = "localhost";
          Response.AppendCookie(cookie);
      }

      private void loadCookie()
      {
          HttpCookie cookie = Request.Cookies["snap_options"];
          if (cookie != null)
          {
              TextBox1.Text = Convert.ToString(cookie.Values["snap_options_collapsed"]);
              TextBox2.Text = Convert.ToString(cookie.Values["snap_options_dockingContainer"]);
              TextBox3.Text = Convert.ToString(cookie.Values["snap_options_dockingIndex"]);

              TextBox4.Text = Convert.ToString(cookie.Values["snap_tools_collapsed"]);
              TextBox5.Text = Convert.ToString(cookie.Values["snap_tools_dockingContainer"]);
              TextBox6.Text = Convert.ToString(cookie.Values["snap_tools_dockingIndex"]);
          }
      }