C#获得Access数据库中的表名，以及根据表名获取字段名

/// <summary>
        /// 返回Mdb数据库中所有表表名
        /// </summary>
        public string[] GetShemaTableName(string database_path, string database_password)
        {
            try
            {
                //获取数据表
                OleDbConnection conn = new OleDbConnection();
                conn.ConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;Jet OLEDB:DataBase Password='" + database_password + "Data Source=" + database_path;
                conn.Open();
                DataTable shemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "TABLE" });
                int n = shemaTable.Rows.Count;
                string[] strTable = new string[n];
                int m = shemaTable.Columns.IndexOf("TABLE_NAME");
                for (int i = 0; i < n; i++)
                {
                    DataRow m_DataRow = shemaTable.Rows[i];
                    strTable[i] = m_DataRow.ItemArray.GetValue(m).ToString();
                }
                return strTable;
            }
            catch (OleDbException ex)
            {
                MessageBox.Show("指定的限制集无效:/n" + ex.Message);
                return null;
            }
            finally
            {
                conn.Close();
                conn.Dispose();
            }
        }
 
       /// <summary>
        /// 返回某一表的所有字段名
        /// </summary>
        public string[] GetTableColumn(string database_path,string varTableName)
        {
            DataTable dt = new DataTable();
            try
            {
                conn = new OleDbConnection();
                conn.ConnectionString = "Provider = Microsoft.Jet.OleDb.4.0;Data Source=" + database_path;
                conn.Open();
                dt = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Columns, new object[] { null, null, varTableName, null });
                int n = dt.Rows.Count;
                string[] strTable = new string[n];
                int m = dt.Columns.IndexOf("COLUMN_NAME");
                for (int i = 0; i < n; i++)
                {
                    DataRow m_DataRow = dt.Rows[i];
                    strTable[i] = m_DataRow.ItemArray.GetValue(m).ToString();
                }
                return strTable;
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                conn.Close();
            }
        }