public class AccessDB

    {

            public enum HandleFlag { Insert, Delete, Update };

            //private String connectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" +

            //        " Data Source= " + AppDomain.CurrentDomain.BaseDirectory +

            //        "\\Resources\\PrivateFinance.accdb";

            private OleDbConnection connection = null;

            private OleDbCommand command = null;

            int num = 0;



            public AccessDB()

            { }



            //增加access数据库的路径的构造函数

            private OleDbConnection BuildAccessDB(String Uri)

            {

                #region 打开连接，操纵数据库

                String connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;" +

                    " Data Source= " + Uri + "Resources\\PrivateFinance.accdb";

                connection = new OleDbConnection(connectionString);

                try

                {

                    connection.Open();

                }

                catch (Exception e)

                {