C#一个Ini操作类

今天药忘吃喽~ 2021-09-19 09:12 364阅读 0赞

#  #

注：原创作者我不记得了，反正不是我，我原来是搞delphi的，编写这个代码的作者也是写delphi，所以我喜欢用这个类，和delphi提供的TIniFile一样的用法。以下是源码，带全部注解。

![None.gif][] using System;  
![None.gif][] using System.IO;  
![None.gif][] using System.Runtime.InteropServices;  
![None.gif][] using System.Text;  
![None.gif][] using System.Collections;  
![None.gif][] using System.Collections.Specialized;  
![None.gif][]  
![None.gif][] namespace DataGridEx  
![ExpandedBlockStart.gif][] ![ContractedBlock.gif][] ![dot.gif][] \{  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] /\*\*/ ///  <summary>   
![InBlock.gif][] ///  IniFiles的类  
![ExpandedSubBlockEnd.gif][] ///  </summary>   
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] public class IniFiles ![dot.gif][]\{  
![InBlock.gif][] public string FileName; // INI文件名  
![InBlock.gif][] // 声明读写INI文件的API函数   
![InBlock.gif][] \[DllImport("kernel32")\]  
![InBlock.gif][] private static extern bool WritePrivateProfileString( string section, string key, string val, string filePath);  
![InBlock.gif][] \[DllImport("kernel32")\]  
![InBlock.gif][] private static extern int GetPrivateProfileString( string section, string key, string def, byte\[\] retVal, int size, string filePath);  
![InBlock.gif][] // 类的构造函数，传递INI文件名   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public IniFiles( string AFileName) ![dot.gif][]\{  
![InBlock.gif][] //  判断文件是否存在   
![InBlock.gif][] FileInfo fileInfo= new FileInfo(AFileName);  
![InBlock.gif][] // Todo:搞清枚举的用法   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] if ((!fileInfo.Exists)) ![dot.gif][]\{ // || (FileAttributes.Directory in fileInfo.Attributes))  
![InBlock.gif][] // 文件不存在，建立文件   
![InBlock.gif][] System.IO.StreamWriter sw = new System.IO.StreamWriter(AFileName, false,System.Text.Encoding.Default);  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] try ![dot.gif][]\{  
![InBlock.gif][] sw.Write("\#表格配置档案");  
![InBlock.gif][] sw.Close();  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] \} catch ![dot.gif][]\{  
![InBlock.gif][] throw( new ApplicationException("Ini文件不存在"));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 必须是完全路径，不能是相对路径   
![InBlock.gif][] FileName = fileInfo.FullName;  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 写INI文件   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void WriteString( string Section, string Ident, string Value) ![dot.gif][]\{  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] if (!WritePrivateProfileString(Section, Ident,Value,FileName)) ![dot.gif][]\{  
![InBlock.gif][] //  Todo:抛出自定义的异常   
![InBlock.gif][] throw( new ApplicationException("写Ini文件出错"));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 读取INI文件指定   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public string ReadString( string Section, string Ident, string Default) ![dot.gif][]\{  
![InBlock.gif][] Byte\[\] Buffer= new Byte\[65535\];  
![InBlock.gif][] int bufLen=GetPrivateProfileString(Section,Ident,Default,Buffer, Buffer.GetUpperBound(0),FileName);  
![InBlock.gif][] // 必须设定0（系统默认的代码页）的编码方式，否则无法支持中文   
![InBlock.gif][] string s=Encoding.GetEncoding(0).GetString(Buffer);  
![InBlock.gif][] s=s.Substring(0,bufLen);  
![InBlock.gif][] return s.Trim();  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 读整数   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public int ReadInteger( string Section, string Ident , int Default) ![dot.gif][]\{  
![InBlock.gif][] string intStr=ReadString(Section, Ident, Convert.ToString(Default));  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] try ![dot.gif][]\{  
![InBlock.gif][] return Convert.ToInt32(intStr);  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] catch (Exception ex) ![dot.gif][]\{  
![InBlock.gif][] Console.WriteLine(ex.Message);  
![InBlock.gif][] return Default;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 写整数   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void WriteInteger( string Section, string Ident, int Value) ![dot.gif][]\{  
![InBlock.gif][] WriteString(Section, Ident, Value.ToString());  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 读布尔   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public bool ReadBool( string Section, string Ident, bool Default) ![dot.gif][]\{  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] try ![dot.gif][]\{  
![InBlock.gif][] return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default) ));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] catch (Exception ex) ![dot.gif][]\{  
![InBlock.gif][] Console.WriteLine(ex.Message);  
![InBlock.gif][] return Default;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 写Bool   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void WriteBool( string Section, string Ident , bool Value) ![dot.gif][]\{  
![InBlock.gif][] WriteString(Section, Ident, Convert.ToString(Value));  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 从Ini文件中，将指定的Section名称中的所有Ident添加到列表中   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void ReadSection( string Section, StringCollection Idents) ![dot.gif][]\{  
![InBlock.gif][] Byte\[\] Buffer= new Byte\[16384\];  
![InBlock.gif][] // Idents.Clear();   
![InBlock.gif][]  
![InBlock.gif][] int bufLen=GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0),  
![InBlock.gif][] FileName);  
![InBlock.gif][] // 对Section进行解析   
![InBlock.gif][] GetStringsFromBuffer(Buffer, bufLen, Idents);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] private void GetStringsFromBuffer(Byte\[\] Buffer, int bufLen, StringCollection Strings) ![dot.gif][]\{  
![InBlock.gif][] Strings.Clear();  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] if (bufLen!=0) ![dot.gif][]\{  
![InBlock.gif][] int start=0;  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] for( int i=0; i < bufLen; i++) ![dot.gif][]\{  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] if ((Buffer\[i\] == 0) && ((i-start)>0)) ![dot.gif][]\{  
![InBlock.gif][] String s=Encoding.GetEncoding(0).GetString(Buffer, start, i-start);  
![InBlock.gif][] Strings.Add(s);  
![InBlock.gif][] start=i+1;  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 从Ini文件中，读取所有的Sections的名称   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void ReadSections(StringCollection SectionList) ![dot.gif][]\{  
![InBlock.gif][] // Note:必须得用Bytes来实现，StringBuilder只能取到第一个Section   
![InBlock.gif][] byte\[\] Buffer = new byte\[65535\];  
![InBlock.gif][] int bufLen=0;  
![InBlock.gif][] bufLen = GetPrivateProfileString( null, null, null,Buffer,  
![InBlock.gif][] Buffer.GetUpperBound(0), FileName);  
![InBlock.gif][] GetStringsFromBuffer(Buffer, bufLen, SectionList);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 读取指定的Section的所有Value到列表中   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void ReadSectionValues( string Section, NameValueCollection Values) ![dot.gif][]\{  
![InBlock.gif][] StringCollection KeyList= new StringCollection();  
![InBlock.gif][] ReadSection(Section, KeyList);  
![InBlock.gif][] Values.Clear();  
![ExpandedSubBlockStart.gif][] ![ContractedSubBlock.gif][] foreach( string key in KeyList) ![dot.gif][]\{  
![InBlock.gif][] Values.Add(key, ReadString(Section, key, ""));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 清除某个Section   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void EraseSection( string Section) ![dot.gif][]\{  
![InBlock.gif][] //  
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] if (!WritePrivateProfileString(Section, null, null, FileName)) ![dot.gif][]\{  
![InBlock.gif][] throw( new ApplicationException("无法清除Ini文件中的Section"));  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // 删除某个Section下的键   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void DeleteKey( string Section, string Ident) ![dot.gif][]\{  
![InBlock.gif][] WritePrivateProfileString(Section, Ident, null, FileName);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][] // Note:对于Win9X，来说需要实现UpdateFile方法将缓冲中的数据写入文件  
![InBlock.gif][] // 在Win NT, 2000和XP上，都是直接写文件，没有缓冲，所以，无须实现UpdateFile  
![InBlock.gif][] // 执行完对Ini文件的修改之后，应该调用本方法更新缓冲区。   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public void UpdateFile() ![dot.gif][]\{  
![InBlock.gif][] WritePrivateProfileString( null, null, null, FileName);  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 检查某个Section下的某个键值是否存在   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] public bool ValueExists( string Section, string Ident) ![dot.gif][]\{  
![InBlock.gif][] //  
![InBlock.gif][] StringCollection Idents= new StringCollection();  
![InBlock.gif][] ReadSection(Section, Idents);  
![InBlock.gif][] return Idents.IndexOf(Ident)>-1;  
![ExpandedSubBlockEnd.gif][] \}  
![InBlock.gif][]  
![InBlock.gif][] // 确保资源的释放   
![ExpandedSubBlockStart.gif][]![ContractedSubBlock.gif][] ~IniFiles() ![dot.gif][]\{  
![InBlock.gif][] UpdateFile();  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedSubBlockEnd.gif][] \}  
![ExpandedBlockEnd.gif][]\}

本文转自suifei博客园博客，原文链接：http://www.cnblogs.com/Chinasf/archive/2005/04/16/138744.html，如需转载请自行联系原作者

[None.gif]: /images/20210726/0725591a2c914f7e800dc269c62691e3.png
[ExpandedBlockStart.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ExpandedBlockStart.gif
[ContractedBlock.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ContractedBlock.gif
[dot.gif]: /images/20210726/ab859947a34e47248216708a509ef605.png
[ExpandedSubBlockStart.gif]: http://www.cnblogs.com/Images/OutliningIndicators/ExpandedSubBlockStart.gif
[ContractedSubBlock.gif]: /images/20210726/a4dd3131281049f7a03b554752a90f77.png
[InBlock.gif]: /images/20210726/8773fbaa8b01410098b00243163ef62e.png
[ExpandedSubBlockEnd.gif]: /images/20210726/b1b5d15d99b3445194715b9f6063312d.png
[ExpandedBlockEnd.gif]: /images/20210726/a043304b4f484571a75ff82ce77367ac.png