/// <summary>        /// 新增一条省份记录        /// </summary>        /// <param name="model"></param>        /// <returns></returns>        public int AddProvince(m_province model)        {            using (var _DataEntities = new ntasystemEntities())            {                if (model != null)                {                    _DataEntities.m_province.AddObject(model);                }                return _DataEntities.SaveChanges();            }        }

 public void AddProvince()        {                        if (CheckDateProvince())            {                m_province entity = new m_province();                int num = Convert.ToInt32(wcf.GetProvinceMaxNum());                int Maxnum = num + 1;                entity.No = Maxnum.ToString();                entity.Name_en = this.txtnameen.Text.Trim().ToString();                entity.Name_cn = this.txtnamecn.Text.Trim().ToString();                entity.Country_no = this.cmbCountryNo.SelectedValue.ToString();                entity.Province_ab = this.txtProvince_ab.Text.Trim().ToString();                entity.mader = wcf.GetUserByNo(Helper.GlobalVariables.Gs_Current_User.No).Name_cn;//当前登陆者                entity.made_dist = "A";//标示                entity.made_time = DateTime.Now;                if (wcf.AddProvince(entity) > 0)                {                    MessageBox.Show("新增成功！");                    BindDateGridView();//重新绑                }            }