DatePicker(日期选择自定义服务器控件)的实现[11]

         /// </summary>

         /// <param name="tw">htmltextwriter 对象</param>

         protected override void render(htmltextwriter tw) {

              // get date parts

              string[] dateparts;

              try {

                   datetimeformatinfo objdateinfo = datetimeformatinfo.currentinfo;

                   //modify by yukh ,because in some objdateinfo.shortdatepattern seperate by "-" eg: yyyy-m-d

                   if (objdateinfo.shortdatepattern.indexof("/")>0)