The TypeGuessRows setting is supported by ACE. Note the version numbers in the key may change depending upon the version of Office installed. For 32-bit Windows (32-bit Office):HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Office\12.0\Access Conn…
笔者在项目中做做了一个从Excel表格中导入数据的模块.大体上asp.net项目中导入Excel大体分成三类: 1)采用c#内置方案System.Data.OleDb(限制较小, 通用) 2)采用Excel的COM组件(会有版本问题) 3)采用伪Excel文件.即使用文本流的方式根据需求自己定义数据格式.同时在服务端进行反格式化 笔者采用的是方案一.相关联开发环境如下: Windows 7(x64) Visual Studio 2010 方案中使用的代码: public sealed class…
最近再升级 pyserial模块时,采用 pip install --upgrade pyserial,待模块下载完成准备卸载原版本时 提示:“Cannot uninstall 'pyserial'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall. ”…
参考: pydot and graphviz error: Couldn't import dot_parser, loading of dot files will not be possible NameError: global name 'dot_parser' is not defined 解决方法 在使用pydot包时发现dot_parser未在程序中定义: Couldn't import dot_parser, loading of dot files will not be po…
学习c++过程中,遇到在VC中使用set时DEBUG模式出现的警告 identifier was truncated to '255' characters in the debug information 网上找了下,发现如下解决办法 转自:http://hi.baidu.com/ncutlw/blog/item/a8a356165f57ae4d20a4e9b1.html 前段时间使用VC6中STRING,VECTOR时DEBUG模式出现的警告, 大概判断应该是调试时一些类调用后导致名字过长,…
linux环境到处Excel报错: The maximum column width for an individual cell is 255 characters 解决方案: for (int i = 0; i < headerList.size(); i++) { int colWidth = sheet.getColumnWidth(i)*2; if(colWidth<255*256){ sheet.setColumnWidth(i, colWidth < 3000 ? 3000…
参考: How to read from an Excel file using OLEDB 为了使用方便,我做成了工具类(OledbCommon.cs),好以后使用. 注:连接字符串中,Provider=xx是从这个连接模仿,主要是考虑是否把第1行当成表头: http://www.connectionstrings.com/excel/ OledbCommon.cs类的代码: using System; using System.Collections.Generic; using Syste…
解决方法在此: https://github.com/dbzhang800/QtXlsxWriter Documentation: http://qtxlsx.debao.me QtXlsx is a library that can read and write Excel files. It doesn't require Microsoft Excel and can be used in any platform that Qt5 supported. The library can b…