C#对INI文件读写

C#本身没有对INI格式文件的操作类，可以自定义一个IniFile类进行INI文件读写。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;

namespace MSFramework.Common
{
/// <summary>
/// ini文件类
/// </summary>
public class IniFile
    {
private string m_FileName;

public string FileName
        {
get { return m_FileName; }
set { m_FileName = value; }
        }

        [DllImport("kernel32.dll")]
private static extern int GetPrivateProfileInt(
string lpAppName,
string lpKeyName,
int nDefault,
string lpFileName
            );

        [DllImport("kernel32.dll")]
private static extern int GetPrivateProfileString(
string lpAppName,
string lpKeyName,
string lpDefault,
            StringBuilder lpReturnedString,
int nSize,
string lpFileName
            );

        [DllImport("kernel32.dll")]
private static extern int WritePrivateProfileString(
string lpAppName,
string lpKeyName,
string lpString,
string lpFileName
            );

/// <summary>
/// 构造函数
/// </summary>
/// <param name="aFileName">Ini文件路径</param>
public IniFile(string aFileName)
        {
this.m_FileName = aFileName;
        }

/// <summary>
/// 构造函数
/// </summary>
public IniFile()
        { }

/// <summary>
/// [扩展]读Int数值
/// </summary>
/// <param name="section">节</param>
/// <param name="name">键</param>
/// <param name="def">默认值</param>
/// <returns></returns>
public int ReadInt(string section, string name, int def)
        {
return GetPrivateProfileInt(section, name, def, this.m_FileName);
        }

/// <summary>
/// [扩展]读取string字符串
/// </summary>
/// <param name="section">节</param>
/// <param name="name">键</param>
/// <param name="def">默认值</param>
/// <returns></returns>
public string ReadString(string section, string name, string def)
        {
            StringBuilder vRetSb = new StringBuilder(2048);
            GetPrivateProfileString(section, name, def, vRetSb, 2048, this.m_FileName);
return vRetSb.ToString();
        }

/// <summary>
/// [扩展]写入Int数值，如果不存在 节-键，则会自动创建
/// </summary>
/// <param name="section">节</param>
/// <param name="name">键</param>
/// <param name="Ival">写入值</param>
public void WriteInt(string section, string name, int Ival)
        {

            WritePrivateProfileString(section, name, Ival.ToString(), this.m_FileName);
        }

/// <summary>
/// [扩展]写入String字符串，如果不存在 节-键，则会自动创建
/// </summary>
/// <param name="section">节</param>
/// <param name="name">键</param>
/// <param name="strVal">写入值</param>
public void WriteString(string section, string name, string strVal)
        {
            WritePrivateProfileString(section, name, strVal, this.m_FileName);
        }

/// <summary>
/// 删除指定的 节
/// </summary>
/// <param name="section"></param>
public void DeleteSection(string section)
        {
            WritePrivateProfileString(section, null, null, this.m_FileName);
        }

/// <summary>
/// 删除全部 节
/// </summary>
public void DeleteAllSection()
        {
            WritePrivateProfileString(null, null, null, this.m_FileName);
        }

/// <summary>
/// 读取指定 节-键 的值
/// </summary>
/// <param name="section"></param>
/// <param name="name"></param>
/// <returns></returns>
public string IniReadValue(string section, string name)
        {
            StringBuilder strSb = new StringBuilder(256);
            GetPrivateProfileString(section, name, "", strSb, 256, this.m_FileName);
return strSb.ToString();
        }

/// <summary>
/// 写入指定值，如果不存在 节-键，则会自动创建
/// </summary>
/// <param name="section"></param>
/// <param name="name"></param>
/// <param name="value"></param>
public void IniWriteValue(string section, string name, string value)
        {
            WritePrivateProfileString(section, name, value, this.m_FileName);
        }
    }
}

 应用：

 有原始INI文件：

执行代码：

            IniFile myIni = new IniFile(Environment.CurrentDirectory + "\\Config.ini");
            myIni.WriteInt("Tsection", "tName", 89);
            Console.WriteLine(myIni.ReadString("System", "MainFormName", ""));
            Console.WriteLine(myIni.ReadString("DbServer", "DbFile", ""));
            myIni.WriteString("DbServer", "DbFile", @"E:\Work\test2.db");
            Console.WriteLine(myIni.ReadString("DbServer", "DbServer", ""));
            Console.WriteLine(myIni.ReadString("DbServer", "DbFile", ""));

 

执行结果：

 

 

http://www.cnblogs.com/CUIT-DX037/