linq 不访问数据库但是可以读到数据很费解

C# code

 YZCXDataClassesDataContext Dll = new YZCXDataClassesDataContext();        /// 向数据库添加相应的列        /// </summary>        /// <param name="ID">工号</param>        /// <param name="Name">姓名</param>        /// <param name="Lgname">登录名</param>        /// <param name="Password">登录密码</param>        /// <param name="Role">权限</param>        /// <param name="Birth">生日</param>        /// <param name="Rztime">入职时间</param>        /// <param name="KS">隶属科室</param>        /// <param name="Sex">性别</param>        /// <param name="Rema">备注</param>        public Boolean  ADuser()        {            Doctor dc = new Doctor();            dc.ID = GetNameClass.NID1;            dc.Name = GetNameClass.NName1;            dc.LgName = GetNameClass.NLgName1;            dc.PassWord = GetNameClass.Npassword1;            dc.Role = GetNameClass.NProle1;            dc.Birthday = GetNameClass.Nbirstday1;            dc.RZTime = GetNameClass.Nrztime1;            dc.KS = GetNameClass.Nks1;            dc.Sex = GetNameClass.Nsex1;            dc.Remark = GetNameClass.Nrem1;            Dll.Doctor.InsertOnSubmit(dc);            Dll.SubmitChanges();         }

执行完操作，数据库没有任何反应，调试没有报错，一切运行正常，本人菜鸟，请多多指教

[解决办法]
调试查看 Dll.Log
[解决办法]
检查对应的配置文件中的连接字符串
[解决办法]

C# code

Dll.Doctor.InsertOnSubmit(dc);