public ActionResult EditUnitQuestion(Course_Question model)
        {
            Course_UnitQuestionBLL bll = new Course_UnitQuestionBLL();

            if (bll.UpdateCourseQuestion(model))
            {
                return Json(new { Result = true, Msg = "修改成功!" }, JsonRequestBehavior.AllowGet);
            }
            else
            {
                return Json(new { Result = false, Msg = "修改失败!" }, JsonRequestBehavior.AllowGet);
            }
        }
 /// <summary>
 /// 更新一条单元活动考试试题记录
 /// </summary>
 /// <param name="model"></param>
 /// <returns></returns>
 public int UpdateCourseQuestion(Course_Question model)
 {
     StringBuilder sql = new StringBuilder();
     sql.Append("update [dbo].[Course_UnitQuestion] set ");
     sql.Append("[Content]=@Content,[QTtype]=@QTtype,[Question]=@Question,[Answer]=@Answer,[Credit]=@Credit");
     sql.Append(" where [Id]=@Id");
     SqlParameter[] cmdParams = new SqlParameter[] {
         new SqlParameter("@Id", SqlDbType.Int, 4) { Value = model.Id },
         new SqlParameter("@Content", SqlDbType.VarChar, 2000) { Value = model.Content },
         new SqlParameter("@QTtype", SqlDbType.Int, 4) { Value = model.QTtype },
         new SqlParameter("@Question", SqlDbType.VarChar, 8000) { Value = model.Question },
         new SqlParameter("@Answer", SqlDbType.VarChar, 100) { Value = model.Answer },
         new SqlParameter("@Credit", SqlDbType.Float, 8) { Value = model.Credit },
     };
     return MSEntLibSqlHelper.ExecuteNonQueryBySql(sql.ToString(), cmdParams);
 }
 /// <summary>
 /// 更新一条单元活动考试试题记录
 /// </summary>
 /// <param name="model"></param>
 /// <returns></returns>
 public bool UpdateCourseQuestion(Course_Question model)
 {
     return dal.UpdateCourseQuestion(model) > 0;
 }