/// <summary>        /// 获取指定表名的列名与描述注释        /// </summary>        /// <param name="mdbFilePath"></param>        /// <param name="tableName"></param>        /// <returns></returns>  public static Hashtable GetTableFieldsDisFromMdb(string mdbFilePath, string tableName)        {            Hashtable tableFields = new Hashtable();            try            {                ADOX.CatalogClass cat = new ADOX.CatalogClass();                string sAccessConnection = strConnRoot + mdbFilePath;                ADODB.Connection cn = new ADODB.Connection();                cn.Open(sAccessConnection, null, null, -1);                cat.ActiveConnection = cn;                ADOX.Table tb = cat.Tables[tableName];                if (tb!=null)                {                    foreach (ADOX.Column col in tb.Columns)                    {                        string colName = col.Name.ToString();                        string colDis = "";                        foreach (ADOX.Property pro in col.Properties)                        {                            if (pro.Name == "Description")                            {                                if (pro.Value != null) colDis = pro.Value.ToString();                                break;                            }                        }                        tableFields.Add(colName, colDis);                    }                }                cat = null;                cn.Close();            }            catch (System.Exception ex)            {                return tableFields;            }            return tableFields;        }