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本文实例讲述了C#实现利用Windows API读写INI文件的方法。分享给大家供大家参考。具体如下：
写入时，如果没有INI文件，自动创建INI
如果在创建时，GetLastError:5 检查IniPath是否添加了文件名称.ini
using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Runtime.InteropServices;
namespace NameSpace
{
/// <summary>
/// 利用Windows API读写INI文件
/// 写入时，如果没有INI文件，自动创建INI
/// 如果在创建时，GetLastError:5 检查IniPath是否添加了文件名称.ini
/// </summary>
public class INI
{
//声明kernel32.dll函数
[DllImport("kernel32")]
private static extern long WritePrivateProfileString(string section, string key, string val, string filePath);
[DllImport("kernel32")]
private static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retVal, int size, string filePath);
//
[DllImport("kernel32")]
public static extern uint GetLastError();
string IniPath = null;
/// <summary>
/// 构造方法
/// </summary>
/// <param name="INIPath">INI文件的绝对路径，后面不需要斜杠</param>
/// <param name="INIFileName">INI文件名称使用时不需要斜杠，需要.ini</param>
public INI(string INIPath,string INIFileName)
{
Console.WriteLine("INI Object building");
IniPath = INIPath + "\\" + INIFileName;
Console.WriteLine("INIFilePath :" + IniPath);
}
/// <summary>
/// 写入INI文件
/// </summary>
/// <param name="Section">Section</param>
/// <param name="Key">Key</param>
/// <param name="Value">Value</param>
public void IniWriteValue(string Section, string Key, string Value)
{
Console.WriteLine("---IniWriteValue---");
Console.WriteLine("Section :" + Section);
Console.WriteLine("Key :" + Key);
Console.WriteLine("Value :" + Value);
Console.WriteLine("IniPath :" + IniPath);
UInt32 Snapshot = GetLastError();
//
WritePrivateProfileString(Section, Key, Value, IniPath);
if (Snapshot != GetLastError())
{
Console.WriteLine("GetLastError :" + GetLastError());
}
}
/// <summary>
/// 读出INI文件
/// </summary>
/// <param name="Section">Section</param>
/// <param name="Key">Key</param>
public string IniReadValue(string Section, string Key)
{
StringBuilder result = new StringBuilder(256);
GetPrivateProfileString(Section, Key, null, result, 256, IniPath);
return result.ToString();
}
public bool ExistINIFile()
{
return File.Exists(IniPath);
}
/// <summary>
/// creat config file to application ini
/// </summary>
/// <param name="dnf_path"></param>
public void CreateConfig(string IP)
{
Console.WriteLine("CreateConfig");
Console.WriteLine("IP:" + IP);
try
{
WriteConfigIP(IP);
if (ExistINIFile())
{
Console.WriteLine("配置文件创建成功");
}
else
{
Console.WriteLine("配置文件创建不成功");
}
}
catch (Exception err)
{
Console.WriteLine("出错信息:" + err.ToString());
}
}
/// <summary>
/// write config for ip information
/// </summary>
/// <param name="IP"></param>
public void WriteConfigIP(string IP)
{
string Section = "Config";
string Key = "IP";
string Value = IP;
try
{
IniWriteValue(Section, Key, Value);
}
catch (Exception err)
{
Console.WriteLine("出错信息:" + err.ToString());
}
}
public string ReadConfigIP()
{
try
{
string Section = "Config";
string result = IniReadValue(Section, "IP");
Console.WriteLine("ReadConfigIP Result :" + result);
return result;
}
catch (Exception err)
{
Console.WriteLine("出错信息:" + err.ToString());
return "Read Error";
}
}
}
}
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希望本文所述对大家的C#程序设计有所帮助。
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