Asp.Mvc 2.0用户登录实例讲解---(1)用户注册(7)

            con.Open(); 
            SqlCommand cmd = new SqlCommand(strAdd,con); 
            int o = cmd.ExecuteNonQuery(); 
            con.Close(); 
            if (o>0) 
            { 
                return true; 
            } 
            return false; 
        } 
 
        /// <summary>  
        /// 判断用户是否存在  
        /// </summary>  
        /// <param name="model"></param>  
        /// <returns></returns>  
        public bool ExistUser(RegisterModel model) 
        { 
            strUserExist = string.Format(strUserExist, model.UserName, model.UserPwd); 
            SqlConnection con = new SqlConnection(conStr); 
            con.Open(); 
            SqlCommand cmd = new SqlCommand(strUserExist, con); 
            SqlDataAdapter adp = new SqlDataAdapter(cmd); 
            DataSet ds = new DataSet(); 
            adp.Fill(ds); 
            con.Close(); 
            if (ds!=null&&ds.Tables[0].Rows.Count>0) 
            { 
                return true; 
            } 
            return false; 
        } 
 
    }