CSLA.Net 3.0.5 项目管理示例 名值列表基类、只读基类、业务负责人基类

using System;
using System.Data;
using System.Data.SqlClient;
using Csla;
using Csla.Data;

namespace ProjectTracker.Library
{

    /// <summary>
    /// 集?成?明?值?对?基?类?，?两?个?泛?型?参?数?，?名?类?型?，?值?类?型?，?因?为?其?中?的?NameValuePair子?对?象?需?要?这?连?个?泛?型?的?支?持?
    /// 
    /// </summary>
    [Serializable()]
    public class RoleList : NameValueListBase<int, string>
    {
        #region Business Methods
        /// <summary>
        /// 获?得?默?认?的?职?位?
        /// </summary>
        /// <returns></returns>
        public static int DefaultRole()
        {
            RoleList list = GetList();

            //如?果?列?表?中?有?值?，?返?回?第?一?个?职?位?为?默?认?职?位?
            if (list.Count > 0)
                return list.Items[0].Key;
            else
                throw new NullReferenceException( "没?有?可?用?的?职?位?，?提?供?默?认?选?择?");
        }

        #endregion

        #region Factory Methods
        /// <summary>
        /// 静?态?的?列?表?成?员?，?这?代?表?着?，?她?是?一?个?公?用?的?
        /// </summary>
        private static RoleList _list;

        /// <summary>
        /// 返?回?职?位?列?表?
        /// </summary>
        public static RoleList GetList()
        {
            //如?果?列?表?是?null空?的?，?则?加?载?她?
            //Fetch提?供?了?一?个?泛?型?，?参?数?Criteria是?使?用?了?基?类?中?默?认?定?义?的?，?这?在?这?里?已?经?足?够?了?,构?造?Criteria
            //的?时?候?提?供?了?一?个?roleList的?类?型?对?象?typeof可?以?获?得?一?个?类?的?类?型?对?象?，?通?过?这?个?对?象?可?以?获?得?此?类?的?方?法?，?属?性?等?值?，?但?这?里?使?用?初?始?化?不?详?
            if (_list == null)
                _list = DataPortal.Fetch<RoleList>(new Criteria(typeof(RoleList)));
            return _list;
        }

        /// <summary>
        /// Clears the in-memory RoleList cache
        /// so the list of roles is reloaded on
        /// next request.
        /// 就?像?上?面?所?说?的?，?在?内?存?中?清?空?RoleList，?这?样?下?一?次?访?问?就?可?以?从?新?加?载?职?位?列?表?，?这?个?列?表?是?静?态?的?哦?，?如?果?不?清?空?就?会?存?在?
        /// 清?空?缓?存?
        /// </summary>
        public static void InvalidateCache()
        {
            _list = null;
        }
        /// <summary>
        /// 默?认?构?造?器?
        /// </summary>
        private RoleList()
        { /* require use of factory methods */ }

        #endregion

        #region Data Access

        private void DataPortal_Fetch(Criteria criteria)
        {
            //去?掉?属?性?更?改?事?件?
            this.RaiseListChangedEvents = false;
            using (SqlConnection cn = new SqlConnection(Database.PTrackerConnection))
            {
                cn.Open();
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.CommandText = "getRoles";

                    using (SafeDataReader dr = new SafeDataReader(cm.ExecuteReader()))
                    {
                        //由?于?这?个?基?类?默?认?的?情?况?下?是?只?读?的?，?所?有?在?为?其?添?加?对?象?的?时?候?应?该?将?其?回?复?为?可?写?的?，?修?改?后?再?还?原?
                        IsReadOnly = false;
                        while (dr.Read())
                        {
                            //加?一?个?名?值?对?的?对?象?到?名?值?集?合?中?
                            this.Add(new NameValuePair( dr.GetInt32("id"), dr.GetString("name")));
                        }
                        IsReadOnly = true;
                    }
                }
            }
            this.RaiseListChangedEvents = true;
        }

        #endregion
    }
}

 

using System;
using System.Data;
using System.Data.SqlClient;
using System.Collections.Generic;
using System.Security.Principal;
using Csla;

namespace ProjectTracker.Library.Security
{
    /// <summary>
    /// 继?承?自?只?读?基?类?，?与?.net 安?全?标?志?接?口?
    /// </summary>
    [Serializable()]
    public class PTIdentity : ReadOnlyBase<PTIdentity>, IIdentity
    {
        #region Business Methods

        private bool _isAuthenticated;//是?否?通?过?验?证?标?记?
        private string _name = string.Empty;//名?字?
        private List<string> _roles = new List<string>();//权?限?列?表?

        //验?证?类?型?CSLA
        public string AuthenticationType
        {
            get { return "Csla"; }
        }

        //是?否?通?过?验?证?属?性?
        public bool IsAuthenticated
        {
            get { return _isAuthenticated; }
        }


        //标?记?名?称?
        public string Name
        {
            get { return _name; }
        }

        //重?载?已?获?得?object支?持?
        protected override object GetIdValue()
        {
            return _name;
        }
        
        //是?否?存?在?，?内?联?，?进?调?用?list对?象?的?Contains实?现?
        internal bool IsInRole(string role)
        {
            return _roles.Contains(role);
        }

        #endregion

        #region Factory Methods

        /// <summary>
        /// 未?经?验?证?方?法?，?内?部?将?调?用?Identity构?造?器?实?例?化?标?记?类?
        /// </summary>
        /// <returns></returns>
        internal static PTIdentity UnauthenticatedIdentity()
        {
            return new PTIdentity();
        }

        /// <summary>
        /// 获?得?一?个?标?记?
        /// </summary>
        /// <param name="username">用?户?名?</param>
        /// <param name="password">密?码?</param>
        /// <returns></returns>
        internal static PTIdentity GetIdentity( string username, string password)
        {
            //数?据?门?户?调?用?，?标?准?类?传?递?
            return DataPortal.Fetch<PTIdentity>(new Criteria(username, password));
        }

        //防?止?意?外?实?例?化?
        private PTIdentity()
        { /* require use of factory methods */ }

        #endregion

        #region Data Access

        /// <summary>
        /// 标?准?类?定?义?有?用?户?名?及?密?码?属?性?，?提?供?移?动?对?象?的?查?询?需?求?
        /// </summary>
        [Serializable()]
        private class Criteria
        {
            private string _username;
            public string Username
            {
                get { return _username; }
            }

            private string _password;
            public string Password
            {
                get { return _password; }
            }
            /// <summary>
            /// 构?造?器?，?初?始?化?私?有?成?员?变?量?（?或?者?叫?数?据?域?/实?例?域?）?
            /// </summary>
            /// <param name="username"></param>
            /// <param name="password"></param>
            public Criteria(string username, string password)
            {
                _username = username;
                _password = password;
            }
        }

        private void DataPortal_Fetch(Criteria criteria)
        {
            using (SqlConnection cn = new SqlConnection(Database.SecurityConnection))
            {
                cn.Open();
                using (SqlCommand cm = cn.CreateCommand())
                {
                    cm.CommandText = "Login";
                    cm.CommandType = CommandType.StoredProcedure;
                    cm.Parameters.AddWithValue("@user", criteria.Username);
                    cm.Parameters.AddWithValue("@pw", criteria.Password);
                    //使?用?的?SqlDataReader
                    using (SqlDataReader dr = cm.ExecuteReader())
                    {
                        if (dr.Read())
                        {
                            _name = criteria.Username;
                            //将?验?证?标?记?志?真?
                            _isAuthenticated = true;

                            //如?果?存?在?下?一?个?数?据?集?
                            if (dr.NextResult())
                            {
                                //装?载?权?限?列?表?
                                while (dr.Read())
                                {
                                    _roles.Add(dr.GetString(0));
                                }
                            }
                        }
                        else
                        {
                            //没?有?通?过?验?证?则?建?立?一?个?未?经?过?授?权?的?标?记?类?
                            //总?之?他?都?会?将?对?象?传?给?UI用?于?建?立?一?个?负?责?人?对?象?，?提?供?对?权?限?的?支?持?
                            _name = string.Empty;
                            _isAuthenticated = false;
                            _roles.Clear();
                        }
                    }
                }
            }
        }
        #endregion
    }
}

using System;
using System.Security.Principal;

namespace ProjectTracker.Library.Security
{
    /// <summary>
    /// 继?承?自?框?架?的?安?全?空?间?中?的?业?务?负?责?人?基?类?
    /// </summary>
    [Serializable()]
    public class PTPrincipal : Csla.Security.BusinessPrincipalBase
    {
        /// <summary>
        /// 构?造?函?数?，?提?供?标?准?对?象?做?参?数?初?始?化?给?基?类?
        /// </summary>
        /// <param name="identity">标?准?对?象?，?提?供?给?了?基?类?</param>
        private PTPrincipal(IIdentity identity) : base(identity) { }

        /// <summary>
        /// 静?态?登?入?，?
        /// </summary>
        /// <param name="username"></param>
        /// <param name="password"></param>
        /// <returns></returns>
        public static bool Login(string username, string password)
        {
            //返?回?通?过?方?法?验?证?一?个?标?记?对?象?，?下?面?的?Unauthenticated是?用?来?返?回?无?需?验?证?的?标?记?对?象?
            PTIdentity identity =  PTIdentity.GetIdentity(username, password);
            
            // 如?果?验?证?成?功?
            if (identity.IsAuthenticated)
            {
                //利?用?标?记?对?象?，?建?立?负?责?人?对?象?
                PTPrincipal principal = new PTPrincipal(identity);
                //将?负?责?人?对?象?交?给?CSLA，?引?用?程?序?上?下?文?中?的?用?户?
                Csla.ApplicationContext.User = principal;
            }
            //返?回?验?证?结?果?
            return identity.IsAuthenticated;
        }

        /// <summary>
        /// 静?态?登?出?，?
        /// </summary>
        public static void Logout()
        {
            //使?用?未?经?验?证?的?标?记?方?法?，?生?命?一?个?标?准?方?法?
            PTIdentity identity = PTIdentity.UnauthenticatedIdentity();
            //利?用?未?经?验?证?的?标?记?对?象?，?初?始?化?一?个?负?责?人?对?象?，?
            PTPrincipal principal = new PTPrincipal(identity);
            //并?将?此?负?责?人?对?象?，?赋?予?当?前?上?下?文?的?用?户?
            Csla.ApplicationContext.User = principal;
        }

        /// <summary>
        /// 重?载?基?类?，?判?断?当?前?标?准?类?权?限?是?否?是?参?数?说?的?
        /// </summary>
        /// <param name="role">要?判?断?的?权?限?</param>
        /// <returns></returns>
        public override bool IsInRole(string role)
        {
            //this，?使?用?的?是?业?务?基?类?中?定?义?的?成?员?变?量?，?这?个?变?量?已?经?在?初?始?化?负?责?人?对?象?的?时?候?被?传?输?给?了?业?务?基?类?
            //获?得?当?前?上?下?文?中?负?责?人?的?标?记?
            PTIdentity identity = (PTIdentity)this.Identity;
            //调?用?这?个?标?记?的?方?法?来?判?断?是?否?存?在?
            return identity.IsInRole(role);
        }

    }
}

 

代码下载：CSLA3.0中文学习演示程序1.2.rar