//删除班级小组
        public JsonResult DeleteClassGroup(string classId, int groupId)
        {
            try
            {
                var param_classId = Dianda.Common.QueryString.Decrypt(classId).ToInt();
                var bll = new Class_GroupBLL();
                var model = bll.GetModel(groupId, " ClassId=" + param_classId);
                model.Delflag = true;
                bll.Update(model);

                var membll = new Class_GroupMemberBLL();
                var member = membll.GetListModel("GroupId=" + model.Id);
                foreach (var item in member)
                {
                    item.Delflag = true;
                    membll.Update(item);
                }

                return Json(new { Code = 0, Msg = "提交成功" }, JsonRequestBehavior.AllowGet);
            }
            catch (Exception ex)
            {
                return Json(new { Code = -1, Msg = ex.Message }, JsonRequestBehavior.AllowGet);
            }
        }