Cookie--c#.net深入研究实例

public class Cookies ...{               
        private HttpCookie myCookie = null;
        public Cookies(string v_id, System.Web.UI.Page v_page) ...{
            try ...{
                if (v_page.Request.Cookies[v_id] != null && v_page.Request.Cookies[v_id].Values.Count > 0) ...{
                    myCookie = v_page.Request.Cookies[v_id];
                } else ...{
                    myCookie = new HttpCookie(v_id);
                }
            } catch(Exception me) ...{
                myCookie = new HttpCookie(v_id);
            }
        }

        public void SaveCookie(string CookieName, string CookieValue ,System.Web.UI.Page page) ...{

            try
            ...{                              
                if(myCookie.Values.Count>0) myCookie.Values.Remove(CookieName);
                myCookie.Values.Add(CookieName, CookieValue);
               // myCookie.Expires = DateTime.Now.AddHours(0.5);
                page.Response.AppendCookie(myCookie);

            }catch...{
            
            
            }

        }
       
        public string GetCookie(string CookieName, System.Web.UI.Page page)
        ...{
            try
            ...{
              
               return myCookie.Values[CookieName].ToString();                
            }
            catch ...{

                return "";
            }
        }

       
        public void ClearCookie(string CookieName) ...{
            try
            ...{
                if(myCookie!=null && myCookie.Values.Count>0)
                myCookie.Values.Remove(CookieName);
            }
            catch ...{ }
        }
        
    }

如果想要使用cookie实现Session的一般功能之关闭IE使cookie失效，关键点是:

   // myCookie.Expires = DateTime.Now.AddHours(0.5);       

不要添加到期时间即可。