Search, and cache search history

1. Add keywords to cookie cache

 //<summary>       //Add search keywords        //</summary>  &N Bsp    //<param name= "KeyWord" ></param>        private void Addkeyword (String ke Yword)         {            KeyWord = Keyword.trim ();            HttpCookie cook;            if (request.cookies["keywordlist"] = = NULL )             {                Cook = new HttpCookie ( "KeywordList");                Cook. Expires = DateTime.Now.AddMonths (1);           }            E lse            {                Cook = Request.cooki es["KeywordList"];           }&NBSP;           list<string> List = Getkeyword (HttpContext);          &N Bsp if (list. Contains (KeyWord)             {                list. RemoveAll (p = p = = KeyWord);           }            if (l Ist. Count >= 3)             {                list. RemoveAt (0);           }            list. ADD (KeyWord);            String productlist = Jsonconvert.serializeobject (list);  & nbsp         Cook. Value = Httputility.urlencode (productlist, Encoding.UTF8);            Cook. Expires = DateTime.Now.AddDays (5);            RESPONSE.COOKIES.ADD (Cook);    & nbsp  }

 2, getting search keywords

 ///<summary>       ///  get search keywords        //</summary>& nbsp      //<returns></returns>        public list<string> Getkeyword (HttpContextBase context)         {            HttpCookie Cook = context. request.cookies["KeywordList"];            list<string> result = new list<string& gt; ();            if (Cook = = null)             {                return result;           }      &N Bsp     else            {                Jsons Erializer jserial = new Jsonserializer ();                StringReader strread = NE W StringReader (HttputIlity. UrlDecode (Cook. Value, Encoding.UTF8));                result = jserial. Deserialize<list<string>> (New JsonTextReader (Strread));           }  & nbsp         return result;       }

3. Render calls on the page

 <div class= "Search" >            <div class= "Demo-container Demo" >            <div class= "Search1" >               @* &L T;img src= "~/storeweb/shop/images/searchinput.png" id= "img"/>*@              & nbsp <input type= "text" value= "@ (Keywordlist.count > 0? keywordlist[0]:") "id=" Searchinput "class=" Sinput "Placehold Er= "Please enter find content"/>                <a class= "sbtn" href= "javascript:; id=" Searc H "title=" Search > Search </a>            </div>          &NBS P </div>            <div class= "Searchwork" >          &NB Sp     <p class= "searchworklist" >                    @{&nbs P     &NBSp                 foreach (var item in keywordlist)         &NBSP ;               {                    &N Bsp       <span> @item </span>                    & nbsp  }                   }            & nbsp   </p>            </div>        </div>

Search, and cache search history