C# ini文件读写 类
一个C# ini文件读写类，从网上收集的，很全，就是没有对section的改名功能，高手可以增加一个
using System;using System.IO;using System.Runtime.InteropServices;using System.Text;using System.Collections;using System.Collections.Specialized;namespace wuyisky
{
/**/
/// <summary> 
/// IniFiles的类 
/// </summary> public class IniFiles { public string FileName; //INI文件名 //声明读写INI文件的API函数 [DllImport("kernel32")] private static extern bool WritePrivateProfileString(string section, string key, string val, string filePath); [DllImport("kernel32")] private static extern int GetPrivateProfileString(string section, string key, string def, byte[] retVal, int size, string filePath); //类的构造函数，传递INI文件名 public IniFiles(string AFileName) { // 判断文件是否存在 FileInfo fileInfo = new FileInfo(AFileName); //Todo:搞清枚举的用法 if ((!fileInfo.Exists)) { //|| (FileAttributes.Directory in fileInfo.Attributes)) //文件不存在，建立文件 System.IO.StreamWriter sw = new System.IO.StreamWriter(AFileName, false, System.Text.Encoding.Default); try { sw.Write("#表格配置档案"); sw.Close(); } catch { throw (new ApplicationException("Ini文件不存在")); } } //必须是完全路径，不能是相对路径 FileName = fileInfo.FullName; } //写INI文件 public void WriteString(string Section, string Ident, string Value) { if (!WritePrivateProfileString(Section, Ident, Value, FileName)) { throw (new ApplicationException("写Ini文件出错")); } } //读取INI文件指定 public string ReadString(string Section, string Ident, string Default) { Byte[] Buffer = new Byte[65535]; int bufLen = GetPrivateProfileString(Section, Ident, Default, Buffer, Buffer.GetUpperBound(0), FileName); //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 string s = Encoding.GetEncoding(0).GetString(Buffer); s = s.Substring(0, bufLen); return s.Trim(); } //读整数 public int ReadInteger(string Section, string Ident, int Default) { string intStr = ReadString(Section, Ident, Convert.ToString(Default)); try { return Convert.ToInt32(intStr); } catch (Exception ex) { Console.WriteLine(ex.Message); return Default; } } //写整数 public void WriteInteger(string Section, string Ident, int Value) { WriteString(Section, Ident, Value.ToString()); } //读布尔 public bool ReadBool(string Section, string Ident, bool Default) { try { return Convert.ToBoolean(ReadString(Section, Ident, Convert.ToString(Default))); } catch (Exception ex) { Console.WriteLine(ex.Message); return Default; } } //写Bool public void WriteBool(string Section, string Ident, bool Value) { WriteString(Section, Ident, Convert.ToString(Value)); } //从Ini文件中，将指定的Section名称中的所有Ident添加到列表中 public void ReadSection(string Section, StringCollection Idents) { Byte[] Buffer = new Byte[16384]; //Idents.Clear(); int bufLen = GetPrivateProfileString(Section, null, null, Buffer, Buffer.GetUpperBound(0), FileName); //对Section进行解析 GetStringsFromBuffer(Buffer, bufLen, Idents); } private void GetStringsFromBuffer(Byte[] Buffer, int bufLen, StringCollection Strings) { Strings.Clear(); if (bufLen != 0) { int start = 0; for (int i = 0; i < bufLen; i++) { if ((Buffer[i] == 0) && ((i - start) > 0)) { String s = Encoding.GetEncoding(0).GetString(Buffer, start, i - start); Strings.Add(s); start = i + 1; } } } } //从Ini文件中，读取所有的Sections的名称 public void ReadSections(StringCollection SectionList) { //Note:必须得用Bytes来实现，StringBuilder只能取到第一个Section byte[] Buffer = new byte[65535]; int bufLen = 0; bufLen = GetPrivateProfileString(null, null, null, Buffer, Buffer.GetUpperBound(0), FileName); GetStringsFromBuffer(Buffer, bufLen, SectionList); } //读取指定的Section的所有Value到列表中 public void ReadSectionValues(string Section, NameValueCollection Values) { StringCollection KeyList = new StringCollection(); ReadSection(Section, KeyList); Values.Clear(); foreach (string key in KeyList) { Values.Add(key, ReadString(Section, key, "")); } } ////读取指定的Section的所有Value到列表中， //public void ReadSectionValues(string Section, NameValueCollection Values,char splitString) //{ string sectionValue; // string[] sectionValueSplit; // StringCollection KeyList = new StringCollection(); // ReadSection(Section, KeyList); // Values.Clear(); // foreach (string key in KeyList) // { // sectionValue=ReadString(Section, key, ""); // sectionValueSplit=sectionValue.Split(splitString); // Values.Add(key, sectionValueSplit[0].ToString(),sectionValueSplit[1].ToString()); // } //} //清除某个Section public void EraseSection(string Section) { // if (!WritePrivateProfileString(Section, null, null, FileName)) { throw (new ApplicationException("无法清除Ini文件中的Section")); } } //删除某个Section下的键 public void DeleteKey(string Section, string Ident) { WritePrivateProfileString(Section, Ident, null, FileName); } //Note:对于Win9X，来说需要实现UpdateFile方法将缓冲中的数据写入文件 //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 //执行完对Ini文件的修改之后，应该调用本方法更新缓冲区。 public void UpdateFile() { WritePrivateProfileString(null, null, null, FileName); } //检查某个Section下的某个键值是否存在 public bool ValueExists(string Section, string Ident) { // StringCollection Idents = new StringCollection(); ReadSection(Section, Idents); return Idents.IndexOf(Ident) > -1; } //确保资源的释放 ~IniFiles() { UpdateFile(); } }
}