企业库DAAB基本用法

 public class Category
    {
        private Database db;
        public Category()
        {
            db = DatabaseFactory.CreateDatabase();
        }

        private string _ClassID;
        private string _ClassName;
        private int _Sort;
        private string _LogoImage;
        private string _ClassDetails;
        private byte[] _DateMark;

        /**//// <summary>
        /// 类别ID
        /// </summary>
        public string ClassID
        {
            set{_ClassID = value;}
            get{return _ClassID;}
        }

        /**//// <summary>
        /// 类别名称
        /// </summary>
        public string ClassName
        {
            set{_ClassName = value;}
            get{return _ClassName;}
        }

        /**//// <summary>
        /// 排序值
        /// </summary>
        public int Sort
        {
            set{_Sort = value;}
            get{return _Sort;}
        }

        /**//// <summary>
        /// 类别图片
        /// </summary>
        public string LogoImage
        {
            set{_LogoImage = value;}
            get{return _LogoImage;}
        }

        /**//// <summary>
        /// 类别说明
        /// </summary>
        public string ClassDetails
        {
            set{_ClassDetails = value;}
            get{return _ClassDetails;}
        }

        /**//// <summary>
        /// 最后修改时间
        /// </summary>
        public byte[] DateMark
        {
            set{_DateMark = value;}
            get{return _DateMark;}
        }



        /**//// <summary>
        /// 获取Category对象集合
        /// </summary>
        /// <returns>返回所有对象集合</returns>
        public IList GetCategoryList()
        {
            IList il = new ArrayList();
            DBCommandWrapper dw = db.GetStoredProcCommandWrapper("CategoryGetList_p");
            IDataReader dr = db.ExecuteReader(dw);
            while(dr.Read())
            {
                Category obj = new Category();
                obj.ClassID = Convert.ToString(dr["ClassID"]);
                obj.ClassName = Convert.ToString(dr["ClassName"]);
                obj.Sort = Convert.ToInt32(dr["Sort"]);
                obj.LogoImage = Convert.ToString(dr["LogoImage"]);
                obj.ClassDetails = Convert.ToString(dr["ClassDetails"]);
                obj.DateMark = (byte[])(dr["DateMark"]);
                il.Add(obj);
            }
            return il;
        }


        /**//// <summary>
        /// 对Category对象的简单查询操作
        /// </summary>
        /// <param name="ClassID">类别ID</param>
        /// <returns>返回Category对象</returns>
        public Category GetCategoryByClassID(string ClassID)
        {
            bool HasData = false;
            Category obj = new Category();
            DBCommandWrapper dw = db.GetStoredProcCommandWrapper("CategoryGet_p");
            dw.AddInParameter("@ClassID",DbType.String,ClassID);
            IDataReader dr = db.ExecuteReader(dw);
            while(dr.Read())
            {
                obj.ClassID = Convert.ToString(dr["ClassID"]);
                obj.ClassName = Convert.ToString(dr["ClassName"]);
                obj.Sort = Convert.ToInt32(dr["Sort"]);
                obj.LogoImage = Convert.ToString(dr["LogoImage"]);
                obj.ClassDetails = Convert.ToString(dr["ClassDetails"]);
                obj.DateMark = (byte[])(dr["DateMark"]);
                HasData = true;
            }
            dr.Close();
            if(!HasData)
                return null;
            else
                return obj;
        }


        /**//// <summary>
        /// 对Category对象的插入操作
        /// </summary>
        /// <param name="obj">Category对象</param>
        /// <returns>返回影响行数</returns>
        public int InsertCategory(Category obj,out string newid)
        {
            DBCommandWrapper dw = db.GetStoredProcCommandWrapper("CategoryInsert_p");
            dw.AddInParameter("@ClassID",DbType.String,obj.ClassID);
            dw.AddOutParameter("@NewID",DbType.String,6);
            dw.AddInParameter("@ClassName",DbType.String,obj.ClassName);
            dw.AddInParameter("@Sort",DbType.Int32,obj.Sort);
            dw.AddInParameter("@LogoImage",DbType.String,obj.LogoImage);
            dw.AddInParameter("@ClassDetails",DbType.String,obj.ClassDetails);
            dw.AddOutParameter("@RowCount",DbType.Int32,4);
            db.ExecuteNonQuery(dw);
            int rlt = Convert.ToInt32(dw.GetParameterValue("@RowCount"));
            newid = Convert.ToString(dw.GetParameterValue("@NewID"));
            db.ClearParameterCache();
            dw.Dispose();
            return rlt;
        }


        /**//// <summary>
        /// 对Category对象的更新操作
        /// </summary>
        /// <param name="obj">Category对象</param>
        /// <returns>返回影响行数</returns>
        public int UpdateCategory(Category obj)
        {
            DBCommandWrapper dw = db.GetStoredProcCommandWrapper("CategoryUpdate_p");
            dw.AddInParameter("@ClassID",DbType.String,obj.ClassID);
            dw.AddInParameter("@ClassName",DbType.String,obj.ClassName);
            dw.AddInParameter("@Sort",DbType.Int32,obj.Sort);
            dw.AddInParameter("@LogoImage",DbType.String,obj.LogoImage);
            dw.AddInParameter("@ClassDetails",DbType.String,obj.ClassDetails);
            dw.AddInParameter("@DateMark",DbType.Binary,obj.DateMark);
            dw.AddOutParameter("@RowCount",DbType.Int32,4);
            db.ExecuteNonQuery(dw);
            int rlt = Convert.ToInt32(dw.GetParameterValue("@RowCount"));
            db.ClearParameterCache();
            dw.Dispose();
            return rlt;
        }


        /**//// <summary>
        /// 对Category对象的删除操作
        /// </summary>
        /// <param name="obj">Category对象</param>
        /// <returns>返回影响行数</returns>
        public int DeleteCategory(Category obj)
        {
            DBCommandWrapper dw = db.GetStoredProcCommandWrapper("CategoryDelete_p");
            dw.AddInParameter("@ClassID",DbType.String,obj.ClassID);
            dw.AddInParameter("@DateMark",DbType.Binary,obj.DateMark);
            dw.AddOutParameter("@RowCount",DbType.Int32,4);
            db.ExecuteNonQuery(dw);
            int rlt = Convert.ToInt32(dw.GetParameterValue("@RowCount"));
            db.ClearParameterCache();
            dw.Dispose();
            return rlt;
        }

    }