access类常用方法

/// <summary>
    /// 获取所有表
    /// </summary>
    /// <param name="ConnAcc"></param>
    /// <returns></returns>
    public static DataTable Get_AllTables(string ConnAcc)
    {
        OleDbConnection connection = new OleDbConnection(ConnAcc);
        try
        {
            connection.Open();
            DataTable dt = connection.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
            connection.Close();
            return dt;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            connection.Close();
            throw new Exception(E.Message);
        }
    }
    /// <summary>
    /// 获取列
    /// </summary>
    /// <param name="ConnAcc"></param>
    /// <param name="tableName"></param>
    /// <returns></returns>
    public static DataTable Get_TablesColumns(string ConnAcc, string tableName)
    {
        string connnectionString = "Provider=Microsoft.Jet.OleDb.4.0;Data Source=" + ConnAcc;

        OleDbConnection connection = new OleDbConnection(ConnAcc);
        try
        {
            connection.Open();

            DataTable dt = connection.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, tableName, null });
            //dt.DefaultView.Sort = "ordinal_position asc";
            connection.Close();
            return dt;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            connection.Close();
            throw new Exception(E.Message);
        }

    }
    /// <summary>
    ///执行结果条数
    /// </summary>
    /// <param name="querstr"></param>
    /// <returns></returns>
    public static int ExecuteNonQuery(string ConnAcc, string querstr)
    {

        OleDbConnection Conn = new OleDbConnection(ConnAcc);
        try
        {
            Conn.Open();
            OleDbCommand mycom = new OleDbCommand(querstr, Conn);
            int myc = mycom.ExecuteNonQuery();
            Conn.Close();
            return myc;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            Conn.Close();
            throw new Exception(E.Message);
        }
    }
    /// <summary>
    /// 查询总条数
    /// </summary>
    /// <param name="ConnAcc">链接字符串</param>
    /// <param name="querstr">查询语句</param>
    /// <returns></returns>
    public static int ExecuteCount(string ConnAcc, string querstr)
    {

        OleDbConnection Conn = new OleDbConnection(ConnAcc);
        try
        {
            Conn.Open();
            OleDbCommand mycom = new OleDbCommand(querstr, Conn);
            int myc = Convert.ToInt32(mycom.ExecuteScalar());
            Conn.Close();
            return myc;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            Conn.Close();
            throw new Exception(E.Message);
        }
    }
    /// <summary>
    /// admin下的文件夹下的返回Table
    /// </summary>
    /// <param name="querstr"></param>
    /// <returns></returns>
    public static DataTable ExecuteAccessTable(string ConnAcc, string querstr)
    {
        OleDbConnection Conn = new OleDbConnection(ConnAcc);
        try
        {
            Conn.Open();
            OleDbDataAdapter myadapter = new OleDbDataAdapter(querstr, Conn);
            DataTable dt = new DataTable();
            myadapter.Fill(dt);
            Conn.Close();
            return dt;
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            Conn.Close();
            throw new Exception(E.Message);
        }

    }


    //前台分页
    public static DataTable PagerSource1(string ConnAcc, int startIndex, int pageSize, string sql, string table)
    {
        OleDbConnection connection = new OleDbConnection(ConnAcc);
        try
        {
            connection.Open();
            DataSet ds = new DataSet();
            OleDbDataAdapter MyAdapter = new OleDbDataAdapter(sql, connection);
            MyAdapter.Fill(ds, startIndex, pageSize, table);
            connection.Close();
            return ds.Tables[0];
        }
        catch (System.Data.SqlClient.SqlException E)
        {
            connection.Close();
            throw new Exception(E.Message);
        }
    }