public enum eErrorDetailCode : int
         {
             登陆成功 = 0,
             登出 = 1,
             应用错误 = 2,
             成功 = 16,
             失败 = 17
         }

foreach (int  myCode in Enum.GetValues(typeof(eErrorDetailCode)))
             {
                 string strName =Enum.GetName(typeof(eErrorDetailCode), myCode);//获取名称
                 string strVaule = myCode.ToString();//获取值
                 ListItem myLi = new ListItem(strName,strVaule);
                 ddlType.Items.Add(myLi);//添加到DropDownList控件
             }