在DropDownList和ListBox中绑定枚举

       /// <summary>
       /// 申请单审批状态
       /// </summary>
       public enum ApprovalStatus { 待审批 = 0, 已审批 = 1, 审批中 = 2 } 

 

        /// <summary>
        /// 把枚举转换成数组
        /// </summary>
        /// <returns></returns>
        public static IList ListTypeForEnum()
        {
            ArrayList list = new ArrayList();
            foreach (int i in System.Enum.GetValues(typeof(ApprovalStatus)))
            {
                ListItem listitem = new ListItem(System.Enum.GetName(typeof(ApprovalStatus), i), i.ToString());
                list.Add(listitem);
            }
            return list;

        }